At least we don't have the situation that they have over at the Wizards' boards.
Apparently, policy is to allow people to have as much garbage in their signatures as they wish, and if it irritates you, the admins will direct you to the control panel where you can limit sigs to 6 lines (or whatever).
Which has led to half a dozen idiots having sigs that go on for over a page - with badly-spelled misquotes from TV series, or character mottos, or links to "Foundation" threads, or whatever... finishing with a polite line like "Yes, it is absolutely necessary for my Sig to be this long. If you don't like it, fix your settings."
Makes me want to go berserk with a nailgun.