Some time ago there was a question that was tagged with elementary-set-theory. One user added set-theory in a suggested edit (that was accepted) and I removed it since I deemed that inappropriate.
Yesterday I noticed the question was bumped, and saw that the same user made the same edit suggestion again, it was accepted (although it had one correct rejection), and shortly after someone edited the tag out.
I left a comment on the main thread, pinging the user who added that tag, twice, that they shouldn't do it. Both because I think that my ruling about the elementary tag being sufficient was correct (and it was backed up by a different user, as evident from the second retag), and because I didn't want this to happen again, when the user adds a tag, and it gets removed, so they add it again, and it gets removed again (and both removals by users that has been here longer and are sufficiently experienced in judging what content should be on each of these tags).
This morning I woke up to find that my comment is missing. Since I surely didn't delete it in my sleep, I flagged the question and pointed out that while it's inadvisable to have long meta discussions in the comments on the main site, one single comment (and possibly a reply) do not constitute of a meta discussion, and should not have been removed. In fact, these are positive things to have on the main site, since they make users be aware of social norms on the site even without being forced through the meta sites and all the long arguments there.
Of course, my flag was declined with boilerplate message (contrary to previous flags about deleted comments that were declined/accepted with some simple explanation as to what happened).
Questions.
- Why was my comment (and perhaps a reply?) was deleted?
- Why wasn't I given any explanation when I asked for one in the flags?