Do you count being chubby or overweight an overbearing flaw? Or are you talking about more than looks; the sanity level of said otaku girl?
Anyway, on topic, I'm a closet otaku. I like a lot of anime and manga but I get embarrassed if other people bring it up because of reasons mentioned by >>1
I used to be a fanatic who wrote crap like Invader Zim slash and stuff, lol
Now I hate those types.