It really depends, like I say the communities were self moderated. If anything was obviously illegal (and got media attention) then the company admins would step in and remove communities, but this didn’t happen often.

Other than that, subreddit moderators were in charge. There were science communities that were heavily moderated to keep information accurate, but the bulk of the subreddits were just kept to whatever standard the mods wanted. I wouldn’t say it was too heavy handed for the most part.

I enjoyed my 10+ years there. It was a shame when they ruined it with the API changes, their official app is dog shit and many heavy users left the platform