How about we just let the people who own the machines decide what data sits on their machines?
So I agree, decentralization will allow some communities to be total free market reddits and chans where anything goes, and I expect them to be very unpleasant places to hang out for some and not others.
I'll be over here in my private community where Microsoft can't read my discussions and anyone whining about the priest-media will be booted.
Decentralization will give people the opportunity to spread their hatred among themselves, without involving me, which is... exactly how things operate today.
So... Bring on infotech decentralization, I guess. It's got its merits, and for me, nothing about all this hate speech will change.