Should comments that attempt to answer the question be removed (redux)?

Question

Right now, we don't remove comments that spoil or attempt to answer the question. This has always struck me as a weird policy, though, given how much people strive not to be spoiled in other places on the site.

I'm re-raising the question now, because recently, there's been an uptick in the number of flags we're getting on comments for spoiling some guess or revealing a solution to the question.

I'm also seeing that when someone does this, someone else invariably posts a well-upvoted comment asking them not to. This makes me wonder if the previous question is dated, and should be revisited.

Should we be deleting comments on questions that attempt to answer the question?

And, how far down does it go - what about attempts to make progress answering a question, without fully revealing the answer?

Answer 1

OK, since no one else is offering an opinion:

Yes, comments on a question that reveal or spoil the solution should be removed.

If you want to answer the question, you can do so in an answer. Comments shouldn't be used for that purpose.

Comments on a question often contain clarifications or hints, and although those should always be edited into the question itself, that doesn't always happen. So it's expected that someone reading the question will also read the comments to ensure that they have a complete picture. It would be pretty disappointing to discover the solution there before you'd even had a chance to attempt to solve it.

People here have become pretty good at using oblique language in comments on answers to avoid revealing spoilers. (Personally, I think that spoilers in comments on answers are not that big a deal, but that's beside the point.) We can easily use similar methods on questions if we feel the need to discuss some aspect of the solution.