Maybe it just needs provenance. So bad actors can't flood the system.

Counter to the above is that, your bad actor may be my leader. People like convenience. When someone is expressing what you want to say, in a better and smarter way, you just reshare/retweet them. And the 'other side' will feel like your leader is a 'bad actor' who is flooding the system. So even the method of resharing/retweeting needs some sort of provenance/single use only. So you can 'agree' with your thought leader, but they shouldn't be able to mass manufacture consent. Since you might even reshare 'fake news' since you generally trust your leader. It's messy, not sure what that would look like - every post that starts getting traction needs to be fact checked? Community Notes on X is a step in the right direction maybe.