They're a racist community propagating satanist and cultist lies to garner support. It's really a ritualistic-styled community that propagates racism and anti-semitism in order to garner support (along with the previously stated satanist and cultist lies to gain more members).
They've been known in the past to try to communicate with the dead using Ouija Boards, rituals, etc. They use these types of things to have the souls of their members removed and replaced with the undead who will then work permanently for their Satanist owner (who also happens to own Polyloseria).