If users are paying, you run into lawsuit territory when you try to censor them for their views. Not necessarily because you can't stop doing business with the

If users are paying, you run into lawsuit territory when you try to censor them for their views. Not necessarily because you can't stop doing business with the person who you decide is an enemy of the people, but because you are still taking all the money of their followers and others who signed up to read their tweets. So accepting money would require a moderation policy that didn't change every other week but was clear and upfront in terms of what business services were being sold.