For example. What happens if someone being malicious blocks you and then starts talking shit about you elsewhere in the comment thread? The person being abused would never know.

[–] AwesomeLowlander@sh.itjust.works 10 points 1 day ago (1 children)

It's not even theoretical. Reddit implemented this and the exact behaviour you described happened. Somebody tested and documented it.

https://www.reddit.com/r/TheoryOfReddit/comments/sdcsx3/testing_reddits_new_block_feature_and_its_effects/

[–] Anivia 3 points 1 day ago

I've had multiple occasions where someone on reddit was losing a debate against me and just blocked me, making it impossible to reply and giving them the "last word" to everyone else that can still see the entire comment chain.

This is not how a public forum like Reddit or Lemmy should behave. It makes sense on actual social media platforms like Instagram, but not here