To their credit, they got rid of the "incel" stuff pretty quickly after it became basically-synonymous with "dangerously violent male-supremacist cult" (it used to just be "losers who can't relate with the opposite sex, and seem to be weirdly proud of this fact"). A similar story holds for the racist content.
I've been pretty close to the incel communities on reddit and I've never understood the bans they placed on them. There were a few posts asking for violence but, to me, they could have been false flags, and they were taken down fast by the mods.
Closing down a forum with thousands of users just because of the attitudes of a handful of them is, well, retarded.