Its open to interpretation really, why limit access to mods. I'm a Lenshu/Wushu guy personally but most of the other members are aikido/greykido/abd based. Then Pedro is Mushu i think.
2 things, one I found this guy that's really good, Brown Belt, I told him he really doesn't need an applilcation since he's really good!
Also, I'm a big Greykido and ABD guy. (i get on judo for the lolz)