this is just the tip of the iceberg...

1) video of the culprit griefing a cat (not only a moderator, but an admin aka reddit employee:
https://www.reddit.com/r/place/comments/tv3hin/a_reddit_mod_is_cheating_and_the_mods_are/

2) their response:
https://www.reddit.com/r/place/comments/txh0xi/i_am_grateful_to_the_reddit_staff_for_doing_such/

3) a lot of censored threads (those are just what I've seen with my own eyes, they were removing those posts which gained attention, then they switched tactics again and remove em' from the beginning):

https://www.reddit.com/r/place/comments/txd29u/hey_you_yes_you_never_forget/

https://www.reddit.com/r/place/comments/txe3f5/never_forget_it/

https://www.reddit.com/r/place/comments/txf6dl/this_post_was_remove_for_posting_the_true/

https://www.reddit.com/r/place/comments/txf61i/i_may_be_booted_but_dont_let_this_disappear_as/

https://www.reddit.com/r/place/comments/txisbm/a_reminder/

https://www.reddit.com/r/place/comments/txkgzk/the_censorship_continues/

https://www.reddit.com/r/place/comments/txgqsi/we_wont_forget_we_wont_be_suppressed_uchotrrr/

https://www.reddit.com/r/place/comments/txha9p/censorship_bad/

https://www.reddit.com/r/place/comments/txkwxz/keep_it_going_people/

https://www.reddit.com/r/place/comments/ty6im2/maybe_we_should_get_this_on_the_next_canvas/

4) a lot of posts and comments were removed in the beginning, + a lot of keywords are blacklisted, your comments will be instantly hidden and other people won't be able to see them.

5) I'm sure that there is a lot more going on, but I can't collect all the info on my own