I don't think it's a good idea, with all due respect, it's like giving a loaded gun to a monkey.
For some people it will go up in smoke, imagine that someone who does not have valid reasons, and put you on a blacklist because you do not like them.
There are people here who have multi-accounts and we don't even know who they really are, imagine all the spam they would create on the platform. this is my point of view, i don't think it's such a good idea
Putting someone on your personal blacklist will, by default, only affect your personal experience using the web sites. So it's far from a "loaded gun".
In practice, the existing mute list is more powerful (because when you mute someone, you no longer see their posts, whereas when you put them on your blacklist, you just see a warning beside their name).
The only time someone's blacklist becomes influential is if many people decide to use that blacklist for their own account.
I agree 💯 people will definitely abuse it as the current blacklists are being abused I got blacklisted for making a honest mistake read @kggymlife