There's also this girl in it who is like, the mouthpiece of the asexual community who made the rounds on 4chan quite a bit (can't recall her name right now, but she has a tumblr, and she's bitter about everything), who then somehow became the asexuality police on LiveJournal and then threw a tantrum when people called her out on it. Edit: Swankivy, remembered it (or however you spell it).
FWIW, do I think asexuality is a thing? Sure do. BUT...I don't believe the community is really putting up a nice image to the public on what asexuals act like. As others have mentioned, asexuality is not really something people cause bodily harm about (I've seen a few claim they were raped due to their asexuality, but I'm not sure how true that is). Most people don't go out in the real world and scream at work "I JUST HAD SEX!!!!!!" so I don't see why people should go out and scream "I'M NOT HAVING SEX!!!!!" If you go to a dinner party without a partner, people just think you're single, no big deal. If you're closeted and come with, say, your husband/wife/SO/whatever, bit of a different story...