That when you block someone, their comment vanishes from your sight. It is like they don't even exist. That's how blocking should be done. It isn't like where on Reddit, you still have the option to click an icon next to their name and see what they've said that got you to block them. Why the hell is that a thing? Why should we care? If we want them blocked, we don't want to see them ever again, including the ability to re-read what they've said.
The blocking system (Reddit's way of blocking is used to piss people off).
Genuine debates (as far as that is possible).
Not being immediately banned from the entire site when an AI decides you did something wrong (I can't back this up but I firmly believe Reddit uses AI to moderate their entire site).