The real test of this is if moretankiechapo (an even more extreme left subreddit full of absolute Stalin-worshipping lunatics) is banned. I expect it to be shut down soon, but if it is that suggests that Reddit genuinely wants the dirtbag left gone rather than just banning CTH to appear even handed.
https://www.reddit.com/r/MoreTankieChapo/
If by "SRS" you mean shitredditsays they're pretty inactive these days. They had fewer than 100 people online last time I checked. If you mean sexual reassignment surgery then CTH was actually full of trannies so I doubt it. I believe something like 10% of them were trannies. Disgusting.