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From time to time, MO will see a question at (or below) the level of an exercise in an intro undergrad course. The question will be closed, fast, but an answer may get posted before closure. On a couple of occasions, I've left a comment on the answer, asking (politely) whether we want to encourage the asking of this sort of question. On both occasions, the answer disappeared - I assume the person who posted it deleted it, and I assume that was, at least in part, after reflecting on my comment. Well, that's what I was after, so I should be happy, but I also worry, just a little, that the answerer, and others who witness the exchange, might think I'm being a bully. So I put the question before meta, hoping to be reassured that what I've done has not been a breach of etiquette, but ready to take my lumps if the collective opinion is that I've overstepped a line.
For anyone who wants to see an example, rather than reply in the abstract, this most recently happened with http://mathoverflow.net/questions/48687/are-there-any-counterexample-to-following-number-theoretic-situation-closed. Of course, you won't be able to see the answer or my comment on it unless you are appropriately privileged.
Links: http://mathoverflow.net/questions/48687 for the first post (the given link fails for some reason), and http://mathoverflow.net/questions/19146/do-six-consecutive-numbers-always-contain-an-abundant-or-perfect-number for the second (which wasn't hyperlinked).
There have been some discussions on this and what I remember of them was that we try not to answer such questions, so it is useful to point out to anyone answering them that this is the way things are done here. In such circumstances (ie when criticising someone's behaviour), I like to link to a relevant meta discussion. Then it says:
Actually, Scott M deleted the answer.
(This just gave me an idea for a "Secret, Underground MO". Since only 10k users can see deleted stuff, we can ask and answer questions that only 10k users can see!)
Hi Gerry, I used to leave such comments until I left one on an answer of Mark Sapir, who was so unpleasant about it that I've decided it's not worth the bother. But I think that having someone leaving such comments is a good idea -- it's hard to influence the mass of people who come in to ask a single question and then depart, but it's not as hard to influence the much smaller group of people who stick around and answer many questions.
Indeed, I deleted this answer unilaterally, and somewhat hastily. I'll be pretty easy to convince this was the wrong thing to do, and indeed I'll apologise to the answerer privately and see if they want to revert. On the other hand, I won't actually do any undeleting unless asked, as I think it is appropriate that that this answer not be visible.
Gerry Myerson is not a bully.
The answerer says everything is fine.
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