I think it would be useful to add an "Answer Later" tab that would be similar to the "Favorites" tab so you could mark questions to answer at a later time. There are so many times I see a question which I would like to answer but don't have time, then I have a hard time finding it again later. Right now I mark it as favorite, go back and answer it, then unmark it as favorite (unless I really like the question). Do you think other people might find this useful? Do you do this some other way?
You might be suggesting a user lists system. If that is so I can see a lot of advantages having that.
You could create lists like
Complex SQL Queries,
Brainfuck puzzles from hell and so on.
I would like to see this feature. If it's not going to be implemented then I will definitely create an addon for that!
"Answer later", or more precisely, "save for later" is conceptually orthogonal from "favorite". If I don't have too many favorites I can glance through them to find the "answer later" ones, like OP does. However if I have hundreds of favorites (I'm getting there), it's impossible to quickly find the "answer later" ones.
A draft answer per @bobobobo would be even better, since it's quite likely that I get interrupted when writing a non trivial answer (for example, boss behind back). It's almost like a deleted answer that you can always undelete, so if the code/schema is flexible enough, maybe "Save as Draft" won't be too hard to implement.
Another alternative could be to save questions with notes and tags. The tags are different from SO topic tags and would include e.g. favorite, later, hilarious, St. Skeet, etc.
With the new mobile app, a similar feature is even more important. I usually find questions I can and want to answer using the Android app during my train commute, but I'd like to answer them later from a device with a physical keyboard. Therefore a way to save questions for later server side is essential.
I think this'd best be solved by drafts, kinda like how you do in email. (Start a draft fully intending to finish it "later"...)
I think this relates to better favourites organisation, for which there is another thread. You could post this idea there as I see a benefit in being able to say why you favourited something, e.g. Answer later.
You can use comments for this, too, if "fave" seems too strong for what is essentially bookmarking.
- comment on the question, perhaps "you can use x for this"
- when you have a keyboard, go to your profile
- click activity and then comments
- use the link to get to the question
- answer it
- remove the comment
It's possible someone will take your comment as a hint and write a good answer in the meantime. That could have happened without your comment of course: you just delete the comment. Just don't make the comment "I will answer this tonight" because that might get removed as chatty or non constructive. Comments are ephemeral and the one drawback of this approach is possible comment removal, but I think that only happens on active questions, so chances are there would be an answer anyway.