Should a "thank you" comment, for instance Thanks for your answer, be flagged as non-constructive?

If a "thank you" comment is flagged as non-constructive what would the moderator reaction to this flag be? Would it be marked as helpful, or not?

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    – nhahtdh
    Commented Mar 4, 2013 at 7:34
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    @nhahtdh That's relevant to this. But this is asking a fundamentally different question. This is related to but not a duplicate of that. Commented Mar 4, 2013 at 7:37
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    @EliahKagan: Right. I wasn't able to find good reference for it, though I remembered seeing something close.
    – nhahtdh
    Commented Mar 4, 2013 at 7:42
  • Why increasing moderators work with something so irrelevant, not mentioning sometimes it is the only way to know the answer was useful, specially with 1 rep newbies. What's the problem with them anyway? Commented Mar 4, 2013 at 8:02
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    @faa We clean up obsolete comments, because they no longer contribute anything of value. Comments like these often don't contribute anything valuable from the start. Also, 1 rep users can only comment on MSO. Everywhere else, we can upvote before we can comment. Anyone who can comment can vote, except when out of votes for the day. And a "Thanks for your answer" comment doesn't even say the answer was useful! Even "Great post!" is pretty worthless. If a post is underappreciated, so a comment is needed to show it's good, a generic comment won't work anyway (and an edit is usually better). Commented Mar 4, 2013 at 8:13
  • These comments are okay, ergo no need to flag them. Quod erat demonstratum, sic erat scriptum, et cetera (hoc comment non est aedificatorius).
    – user1228
    Commented Mar 4, 2013 at 13:58
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    Which answer should I accept? I personally have an opinion like Eliah Kagan answer, but more people like Makoto answer, which is also ok to me. I don't know why this post is linked as duplicate, as I don't believe the duplicated post have exact same content of this post. There are some similarities, but not identical. Commented Mar 5, 2013 at 6:35
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    I agree that this is not a duplicate of the question linked. This one asks if you should flag "thank you" comments, while the linked question asks if "thank you" comments are acceptable, where the top answer is "Yes, but its not really what comments were meant for and its preferable if you thank the user by using your votes, or pay-it-forward by helping others on the site". I'm voting to reopen this question, especially since a similar question just got closed as a duplicate to this one.
    – Rachel
    Commented Apr 5, 2013 at 20:22

4 Answers 4


A "thanks" comment that doesn't provide any specific praise about the answer is usually not constructive, and almost always qualifies as "too chatty" as well. However, when the comment says something substantive, even if general (like "Great post! This explains a difficult concept in a very clear way."), it likely has some value and may be a poor candidate for flagging.

You shouldn't feel obligated to flag them when they are not distracting from anything else. When it distracts from other comments (especially if other comments are hidden as a result or take up more than a small fraction of the height of a page), I think they should be flagged. I'm not saying they need to be flagged whenever there are n or more other comments. This is subjective, there probably does not need to be a rule for this, and everyone can use their own judgment.

When such a comment is flagged, it should be removed unless it contributes something. If people have replied to it or it has many upticks, that suggests it may serve some purpose. In any case, almost always when such a comment is flagged, the flag should be marked helpful even if the comment is not removed (with the only major exception being if the comment is not removed because it is useful, and it is frequently flagged, presumably by the same user).

Different site communities may have different ideas about this. You should not be surprised if flags on these comments are handled differently on different Stack Exchange sites.

When there is more than one "thanks" comment (from the same user or from different users), all but one are virtually always both not constructive and too chatty even by highly restrictive interpretations of those categories. In this situation, comments should almost always be flagged and removed.

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    Silly non-issue. We are not (most of us at least) robots.
    – spring
    Commented Mar 4, 2013 at 9:29
  • This is where I normally go. They're "too chatty" rather than not-constructive. Commented Apr 6, 2013 at 10:27

While I'd prefer it if those thanking in comments would pay it forward, I see no benefit/reason/rationale to flag those sorts of comments.

Flag only the comments that are seriously egregious - offensive, too chatty, or just plain rude.

  • What will you think about my second question(The flagged comment should be removed or not)? Commented Mar 4, 2013 at 7:20
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    I thought I answered that by "I see no benefit/reason/rationale to flag those sorts of comments." It's implicit but removing them isn't...purposeful. In the grand scheme of things, teaching them what it means to "pay it forward" is more beneficial and will have a better effect than merely flagging the comment.
    – Makoto
    Commented Mar 4, 2013 at 7:24

Flagging friendly comments is silly. As was said above, we aren't robots.

"Thank you" comments (and their equivalent in questions) are fair game when cleaning up or editing something anyway. There is no point in taking specific action because of them. Don't alert mods to something that doesn't actively bother anyone.

There are literally millions of bigger issues (actual problems) on the site.


I guess no need to flag such 'thank you' comments reason being that firstly it is not a major offense which should be flagged and secondly mods are already busy with other site moderating chores.

It would be better if you leave a comment reminding the user who posted 'thank you' that such comments are not encouraged on Stack Exchange sites and upvoting / accepting answer are as good as writing 'thank you'.

Removing flagged comment is a prerogative of the moderator who is reviewing your flag, the mod may decide to remove or leave the flagged comment. There is no official rule on this.

'Not constructive' is the closest flag that can be used in such cases. A 'thank you' note is not rude, offensive, obsolete, or chatty.

  • What will you think about my second question? Commented Mar 4, 2013 at 7:20
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    Thank you note is chatty, and can be flagged as such. But personally, I think it is OK to leave them alone, unless it is cluttering up the discussion.
    – nhahtdh
    Commented Mar 4, 2013 at 7:32

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