Eh, this is one potentially-controversial issue I couldn't care less about. I do agree with Leeza about the poor state of GC, but I think it's better than it has been in the past.
I do, however, think a thread should be left opened or closed on its own merits - not on the state of the threads around it. Even with that, I can't argue the closing of the Post your Crotch thread. It definitely had a very high potential of getting out of line, and it's not like it was original(like the old "Scan your Hand" and "Scan your Frisbee!" threads). Plus, how amusing is it to look at several dozen pictures of the front of jeans(this would be my biggest reason for agreeing to close it)?
Still, I can see Proto's point about closing threads early. Isn't it better to close threads when they've gotten out of line, rather than merely having the potential to do so?