They shut down a huge number of firearm/alchohol/tobacco related subreddits in the last month, many of which were very mature and welcoming communities, without any warning they they were going to do this to the moderators.

Places like r/beerswap and r/pipetobaccomarket, which allowed users to swap product unavailable in their local areas.

Now the moderators of big subreddits like r/pipetobacco are organizing alternative websites for their users to go to, before the inevitably get banned without warning for not aligning with Reddit's new image.