I've been browsing many sites of coslayers. I find them really funny, even if I don't think some of the people who do it are the right persons. Let me explain: I've seen Rei Ayanami cosplayers, and they were so fat >__< I don't have anything against fat people, but why wearing a plugsuit if your "shape" doesn't allow you to wear it?
Or many other people were using some "poor" costumes, or they simply didn't look good in them.
Would you do Cosplaying if you had the opportunity? Which costume would you like to wear?