Yeah, they have one of the most up to date and active repositories of tabletop games and a really solid wiki to go along with it, including scans of stuff never released in PDF form. 1d6chan wiki is also incredibly detailed and useful for finding stuff. I guess in an ironic twist, it was the known bigotry and just general asshole behavior there that dealt some of the biggest blows to the repository and almost made it go away.
I don't interact with anyone, I don't post, I just use it for the value. I would prefer another site do this as well, but so far none have even come close.