2. This has some merit and would be a great start (we can dream, right?), but I don't think it would solve misinformation.
3. That sounds nice, but how would it work in practice. What if moderators get death threats from bad actors?
2. Nothing I listed would "solve" it. There is no one "solution".
3. We already have laws to deal with harassment.
Frankly, I feel like you're falling for the nirvana fallacy, here:
Yes, FB has been pretty egregious in certain areas, but the question of how to prevent misinformation in online communities is a tricky one, that goes beyond the details of a particular platform and into human nature. Government can (should?) help in certain ways, but even in the best scenarios, that will have limitations, as well.
Anyway, I appreciate your thoughts.
Your mistake is thinking the problem is in the communities, as opposed to the technology platforms themselves.
Personally, as a starting point I'd want them to:
1. Kill algorithmic curation that is based on "engagement". These digital skinner boxes are a cancer on society.
2. Introduce much stronger privacy laws that discourage or prevent data collection used to drive targeted advertising. Reduce or eliminate the financial incentives driving #1.
3. Provide complete and open transparency around how these platforms engage in their moderation decisions. Reporting leads one to suspect Zuck stepped into to help out right-wing agitators. Twitter is making their own arbitrary decisions. We all need to know if these decisions are happening and how they're being made.