I think part of the problem is that Twitter is rooted in American assumptions about propaganda that don't apply globally. America isn't propaganda-free, of cou

I think part of the problem is that Twitter is rooted in American assumptions about propaganda that don't apply globally. America isn't propaganda-free, of course, but there's enough competing/conflicting propaganda that things kind-of balance out. (Or at least historically they did; increased silo-ing is reducing exposure to conflicting opinions even here). Opening the platform to countries like Saudi Arabia and China brings fully-functional propaganda operations into the global mix, for which there is no existing competition. Nobody really knows what to do about it.