They've had a number of reorganizations over the years to get rid of the more toxic subcultures on there.
There's also serious censorship [2] and narratives that are pushed, especially messaging that's pro-CCP, mostly thanks to the recent $150M investment from Tencent
https://old.reddit.com/r/undelete/top/?t=year
https://www.reddit.com/r/nextfuckinglevel/comments/j2lti8/a_...
https://reddit.com/r/pics/comments/j2q1g8/standback_and_stan...
There are many in the thread of Jewish faith asking it to be taken down, feeling that it promotes Holocaust denial /minimisation. If you read the horrendously uncaring Moderator sticky post dripping with sarcasm you get a good feel for the state of Reddit in 2020.
It makes the default subreddits totally unusable imo. Sometimes I just want to see funny pictures, not be lectured to about why I'm a racist or how my unconscious biases blah blah blah.