Uncensored news is a good example because this ban didn't come from nowhere and it wasn't immediate. You can get a pass with a lot of hate on Reddit as long as you don't violate a few special rules: a) Don't end up on news to make Reddit look bad. b) Delete posts if Admins ask you to.
That Uncensorednews survived as long as it did despite violating several rules of Reddit is a disgrace but the fact that there are people who actively reported racists posts helped give them notoriety and eventually Reddit admins gave them a warning which they ignored and they got banned.
If you report something awful that LSC does and they don't cut that shit out then maybe they too will get banned.
As for T_D, the mods pin racist posts, they encourage racism and hate and ban people who disagree. They then delete these posts after and only if the posts are linked elsewhere or someone reports them. There are months old death threats and racist posts on T_D that have thousands of upvotes and then disappear after someone takes a screencap and posts it to Againsthatesubreddits or similar group and T_D tries to cover their tracks. They pinned the "unite the right" rally advertisement on T_D and actively promoted it but soon after the terror attack during the rally they removed that post and have repeatedly claimed that they never supported the rally.
T_D mods brag about operating 60 separate accounts to fight "downvote wars" and complain about mods banning some of those accounts:
https://www.reddit.com/r/AgainstHateSubreddits/comments/84o9s2/tder_and_rconspiracy_user_admits_to_operating/They started spewing hate against Hawking the moment they got the news about his death:
https://www.reddit.com/r/AgainstHateSubreddits/comments/84beyl/the_donald_praising_stephen_hawkings_death_this/ Also note how one of the comment lists racist subreddits and LSC is there because people who oppose racism don't just pick on the right, they oppose hate no matter where it comes from politically.
Racism on T_D:
http://archive.is/QX5yYCalling for deaths of police officers:
http://archive.is/TgiUFThere are subreddits like Jewhate, Jewishworldorder, Millionshekelsurpreme and who knows how many subreddits that exist only to spread hate.