Ehhh... I don't know about that. It's been a while since I've spent any quality time over there. In the past, they had an (I believe) undeserved reputation for being anti-TMA. What I found is that they have a well deserved reputation for being ant-BS. If you are a wing chun guy, great. You'll take some heat if you start to claim you can fight, etc, but that doesn't make you a fraud.
If you are a WC guy who claims to be deadly... things start to get dicey. If you are a WC guy who claims to be a former Army Ranger who is deadly, etc, then you might start to draw some attention. The guys whom they spend a lot of time investigating are people who promote claims they will not or cannot substantiate.
One of the founders of the site has a kung fu base.
It's a nuanced difference, and I get that the end result is that some styles are less welcome there than others. That's certainly a part of the site. I'm not making excuses. I am really just trying to point out that being dismissive of styles is not the same as considering them fraudulent. They really are careful to distinguish one from the other.