On Digg there’s some drama because someone registered the community “/wallstreetbets,” and the admins took it from him and gave it to one mod of the subreddit “r/wallstreetbets.”
One day later I see this discussion about how Reddit registered trademarks for some high-profile subreddits.
This could be relevant for the Threadiverse.
Anybody can sue anyone for any reason. Doesn’t mean they’ll win. It depends on who is willing to spend the most money.