I guess that fat people are the last group that it's socially acceptable to hate. I've noticed that most of those pointing out the flaws of others usually have some pretty good ones themselves. I guess it's there way of saying to themselves, "Hey, I'm not perfect, but I'm WAY better than that person over there!"
I think that Ian points out that the shrine is (rightly, IMHO) open to everyone because the purpose of the page is to demonstrate that FTL does have a substantial female listener-ship.
There are plenty of other places on the web where you can drool over fashion-plates.