Unfortunately many examples; usually it starts with a "-1 spam", e.g. for this post: https://lobste.rs/s/ebztmj/now_we_know_which_cs_publication_...

And if you then complain that the post doesn't violate house rules, you get some obviously wrong claims from someone of the inner circle why it does; if you then contradict to these claims or present facts, you usually get flagged for trolling, and eventually your comments are removed by the admin. I have still an account but don't spend more time there.