I've been involved in a comment thread (with babou, not that it makes any difference) that has no reason for existence after both of us have run out of things to say. While it existed it was useful (and it wasn't extended enough to be worth moving to chat), but tomorrow it will just clutter up the site. What I wanted to do was to flag the thread for removal, but I thought it would be impolite to flag a comment that wasn't mine. Surely the mods might appreciate a heads-up on our thread, since I can't imagine that their responsibility extends to reading every comment on this site.
So, is there a reason behind the policy that you can't flag your own comments? On a more abstract level, is this question worth anything beyond a (tempest-in-a-teapot) tag?