Slightly related. The Reddit subforum for Bitcoin is managed by people supporting the scam and they very actively promote it and will ban any opposition. I think that should be illegal.
If you are saying that someone with some stock in AAPL and would be pleased if it went up can't be a mod of /r/apple and should have criminal liability for moderating a community's activity (and would likely ban people who consistently post 'Apple is bad, buy Dell instead' or 'Avoid apple - Steve Jobs was a bad man') then you're suggesting a different thing that would be harder (in my eyes) to argue for.