These things never stay contained though. The hate subreddits feed off of and seep into the rest of the site. In the old days someone had to make a conscious decision to visit a site like Stromfront. You weren't going to go there unless you already were interested in racist ideals. On Reddit those ideals are mixed in with everything else. This makes it harder to notice you are being exposed to hate and/or influenced by it. The end result is that Reddit is a boom to recruiting for hate groups.

There are three main ways of interacting with Reddit: posting, voting, and commenting. Hiding the obvious hate subreddits helped address the posting of topics. That was an important step and I don't want to diminish it. Reddit has tried to address the voting aspect with various tweaks to the ranking algorithm but whether it has been effective is still debatable. They haven't done anything as far as I'm aware to address hate comments. That is left completely up to the users and moderators.