However, the user that created it (Rodrigo A. Pérez), was -- I am virtually certain -- the same that created it the last time. And, could recreate it any number of times, as he tags other peoples questions with it. To avoid a misconception this is IMO done with good intentions. Still it could be a good idea to let him know this should not be used, otherwise it might reappear every other day.
(I could do so myself via a comment somewhere, but I'd think it is better somebody other than me does this.)
]]>http://tea.mathoverflow.net/discussion/1539/not-sure-what-to-make-of-all-these-posts/
I admit I maybe strayed too far towards ends rather than means. I'm glad this appears resolved.
]]>In my opinion to have a homework-tag on MO is rather potentially harmful as it is likely to give the wrong impression that homwork-questions are on-topic (why else should such a tag exist, could be an IMO reasonable line of reasoning of a new user).
Indeed, that is why I suggested the deletion of a then existant tag of the same name some time ago (which happened). It now was recretated, by a very experienced user. So I did not just want to remove it but rather thought to start this thread.
Added: for reference this is what I said on the respective sticky thread Dec 4th 2011 (towards top of page 5) [To avoid a misconception, the user using it then and now are different.]
]]>I just noticed that there is a (recent?) 'homework' tag and somebody (not OPs) tagging things with this. For several reasons I think having this tag is a bad idea. One is that it can suggest homework is on-topic.