Reasons Why #10: MetaFilter
I read MetaFilter pretty much religiously (ie: I pick and choose the parts that interest and/or outrage me the most) and one of the hot button issues over there is always fat. Whenever a thread comes up related to fat or weightloss, people go crazy. There's this contingent of former and never fat people who smugly insist that all the fat people need to do is stop being lazy and everything will solve itself.
I would like to be thin, so that I, too, can be a former fat person on MetaFilter, and so that I can prove that it is possible to be a former fat person, and still not be a shrill, sanctimonious asshole.