I came across this question and at the time there were no suggested answers. After reading Mark Hubbart's comment (at the time with four upvotes), which was the correct answer, and seeing that it had been over 30 minutes since his comment, I figured I would provide that answer in my own words, which I did. My answer is longer, and I think more rounded and more useful, but the core of the answer came from the comment. I have no idea if I'd have thought up the answer on my own--a definite maybe to that.

Now had I tried to be "honorable" or something, such as instead of answering, suggesting to the commenter that he make his comment an answer, I would only have accomplished giving away easy rep to some other user not as into gratuitous self-denial.

The commenter had merely to enter his comment into an answer box instead of a comment box! It was his choice! Whether he was too lazy or didn't think his answer worthwhile or some other reason is not my responsibility. Must I bend over backward to help him earn points that he so carelessly left lying around for another person to take? It just took a tiny bit of non-laziness on my part to get my text typed into the box that would reward me instead of the box that wouldn't.

If my perspective is incorrect and the community would rather see such answers-as-comments rewarded and supported, I will gladly accept that. In the meantime, I just want to shake off the tiny bit of guilt my overly-nice and overly-concerned-with-propriety self is feeling. :)

  • I'm curious if anyone else has perspectives different from Asad's.
    – ErikE
    Commented Dec 7, 2012 at 8:18
  • 4
    You have nothing to feel bad about.
    – user50049
    Commented Dec 7, 2012 at 8:52
  • 5
    Personally I occasionally post something answer-like as a comment when I don't have the time (or desire) to post a full answer. I am perfectly fine with someone taking that and turning it into an answer (especially if they expand on the concept a little bit more than my answer does). I even mention that in my profile on SO. Commented Dec 7, 2012 at 9:16
  • Great question. With this in mind, I may do a bit of comments-into-answers myself. It drives me crazy to see so many "unanswered" questions lying around with the answer in the comments. Commented Dec 7, 2012 at 9:30
  • I am really curious about the downvotes. Could someone explain why?
    – ErikE
    Commented Dec 7, 2012 at 18:42
  • @ErikE The downvotes flow pretty freely here on Meta. Someone could downvote just because they don't like the tone in which you asked or whatever, and I think that is part of the fun. Don't take it so seriously.
    – user200500
    Commented Dec 7, 2012 at 21:26
  • @Asad "meta" "part of the fun" ;P
    – user206222
    Commented Jun 2, 2014 at 21:16
  • When faced with a similar situation, I typically post a comment suggesting that the previous commenter should post an answer. I might post an answer myself if they haven't done so after a reasonable time. (I'm not saying you need to do this, and one could certainly argue that your approach is better.) Commented Jun 2, 2014 at 21:32

3 Answers 3


You don't have anything to feel guilty about. If the person was interested in writing and maintaining an answer, they would have done so. If it was in fact the correct answer it's hardly likely that they would be the only one to think of it.

Doing what you did by expanding it into a proper answer is perfectly fine. The question came off the unanswered list, the answer exists in a much more articulated state to help future visitors and at the end of the day everyone wins.

If we were honestly concerned about this, moderators would have the ability to convert comments into answers. That's not going to happen. Comments are, in fact, ephemeral; useful nuggets they contain should be moved to a more permanent place.

Don't think too much of it. If you really want to alleviate this misplaced sense of guilt, add something like this to the bottom of your answer:

Additional credit goes to Mark Hubbart who first spotted this in comments.

Still, the bulk of the work was your own.


You're over thinking this. A question has been asked, an answer has been provided, and if your only contribution is to move the correct answer to the appropriate channel, it is no less a valuable contribution.

As long as you elucidate the underlying concept thoroughly and properly format your post, you're doing the community a favor by posting this answer. It would also be nice if you mentioned the person who wrote the comment.

If, on the other hand, if it is clear to you that the commenter has revealed a partial solution in the process of clarifying something, and he/she means to post an answer, the gracious thing to do is to give them a bit of time to post it.

The bottom line here is this: if being "honorable" is preventing the question from getting answered, do us a favor and be "dishonorable". Getting the question answered is the first priority.

  • Are there any rules as to whether this should be community-wiki or not?
    – nanofarad
    Commented Dec 7, 2012 at 1:30
  • @ObsessiveSSOℲ That differs from answer to answer. Coming up with hard and fast rules for this would be nearly impossible, but the general rules of good taste apply in taking credit for what is yours and not taking credit for what isn't. If you feel you didn't add anything significant, and making it CW helps you sleep better, go for it.
    – user200500
    Commented Dec 7, 2012 at 1:35
  • 3
    @ObsessiveSSOℲ do not use CW for this, it's not a proper use anymore. You've done the work to elaborate on the comment, not the person who posted the comment. Community wiki is for those rare, rare posts where you have multiple people collaborating on a post, something that doesn't happen often on the sites (as its usually an indicator that there's something wrong with the question).
    – casperOne
    Commented Dec 7, 2012 at 1:51
  • Your answer is very indirect. You've hinted that I did not do the community a favor (by not crediting) and that I was ungracious (by not waiting for the commenter to come back). Is that what you are trying to say?
    – ErikE
    Commented Dec 7, 2012 at 3:46
  • @ErikE I've rephrased the part about giving credit. About the ungracious part: were you certain the commenter was about to post an answer? That's a pretty underhand thing to do. Note that this in no way diminishes the utility of your answer.
    – user200500
    Commented Dec 7, 2012 at 8:02
  • 3
    In this case, I saw no intent on the part of the commenter to post an answer. It looked like a drive-by comment and 30 minutes had elapsed. If I see someone truly investing time to quiz a questioner and extract more detail, then I may very well step aside. But that was not the case. Your revised answer is clearer to me. Thank you for the clarification.
    – ErikE
    Commented Dec 7, 2012 at 8:15

Be nice:

Politeness should tell you to first ask the commenter to convert the comment into an answer. I even have an auto-comment for that:

@OP Could you please convert that to an answer so that schmucks like me who go around hunting for unanswered questions don't have to look at this one any more? ;-) (And I'll upvote if you drop me a note and it's a good one too!)

If you then don't get a response after 24 hours, you're free to do add an answer yourself. :-)

However, some people use the comments to put a substantial amount of work into first getting the right information before answering a question to be able to come up up with a perfect answer. If you then just copy-paste their comments into your answer without their consent, that is something I would consider impolite as well. (See canned comment above)

Personally, when I use someone else's comment to be converted to an answer:

  • I use the "community answer" check-box on the bottom of the answer. (as the answer isn't mine: just a community effort)
  • I post an answer under my name only when I get a comment back saying "I can't be bothered converting that comment into an answer. Please go ahead and do the work yourself".
  • 1
    Of course questions in comments that are getting somewhere I would stay away from. My question was specifically for the case where the entire answer is given in a comment and the person shows no indication of investment or further involvement.
    – ErikE
    Commented May 19, 2015 at 21:42
  • I didn't imply at all that you're not a perfect gentleman, but today this Q&A was quoted to me as an example that yes, it's allowed to convert other people's comments into answers but the specific case I thought I was seeing was of the less polite way, so I just wanted to add my 2¢ here... (and thanks for the upvote!) ;-)
    – Fabby
    Commented May 19, 2015 at 22:50
  • I'm less than fully convinced that using information from someone's comment to provide an answer is unsportsmanlike. An answer that is a possible solution and also asks clarifying questions is perfectly legitimate. People should use the box that rewards them, not the box that doesn't. I don't get it.
    – ErikE
    Commented May 20, 2015 at 17:52
  • Here are a few examples: lmgtfy.com/?q=askubuntu+fabby+schmucks
    – Fabby
    Commented May 20, 2015 at 18:44
  • Why would you send me off on a lmgtfy google search for some random thread (presumably you were trying to point out the second search result) where you didn't convert someone's comment to an answer 5 years ago!?!?! I'm flummoxed by your actions.
    – ErikE
    Commented May 21, 2015 at 19:50
  • I was trying to point out al 3 pages of the search (and lmgtfy is just easier to type then copy-paste a google search): I consistently ask the commenter to create an answer and only when the commenter defers to me I answer it for them...
    – Fabby
    Commented May 21, 2015 at 23:09
  • I'm tempted to go collect those points myself! Clearly those questions have been abandoned.
    – ErikE
    Commented May 22, 2015 at 7:52
  • @ErikE: you should have as they're all converted to community posts now if the original commenter didn't put in the effort (also: read new addition)
    – Fabby
    Commented Jun 3, 2015 at 22:09
  • @Fabby while I understand why you posted a lmgtfy link in this case, but please be aware that it is seen as a little agressive and condescending in most cases. I would refrain from using it all together, as it never helps a in a productive way
    – Neuron
    Commented Apr 28, 2018 at 1:43
  • @LonelyNeuron Yeah, that was back in 2015 when I was still new on this site and LMGTFY links were still allowed here. Leaving it in for historical purposes, so your comment will still make sense in the future... ;-)
    – Fabby
    Commented Apr 28, 2018 at 11:25
  • 1
    @Fabby glad we are on the same page :)
    – Neuron
    Commented Apr 28, 2018 at 11:27
  • @LonelyNeuron Also: your comment allowed me to review my answer, so it's just been edited... ;-)
    – Fabby
    Commented Apr 28, 2018 at 11:29

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