She exploited her looks + gamers and moved into acting
I don't like her acting at all but you have to give her credit ... despite knowing nothing about video games, she used her vaguely Asian-ish good looks to work uber nerds into a lather and then used her popularity with that ridiculously loyal fanbase to transition into acting in TV and movies.
She's hot. She knew how to work it for maximum effect with the loudest crowd on the internet. She succeeded.
Due to the lack of moderators, trolls can ruin the IMDB message boards. Don't feed them.