However of course the community needs to arrive to a general consensus about what type of content would be appropriate and acceptable to be in the platform without one intermediary to control the entire platform.
There's always someone who try to find the loophole even the community already set up the general consensus. Having a social media without one intermediary could cause a disaster, even theymos really want to make the forum as decentralized as possible, but this forum we have few moderators who ban and delete users post. That's a good thing because there are a lot shitpost need to be deleted.
Yeah, there will always be bad guys apart from the good guys but I think it was also the fault of the platform owners because there might be bugs on their platform which can be a cause for the exploiters to take advantage of. Also if their security is still weak.
There is no need for an intermediary here because Blockchain is all about decentralization. As for having a moderator, I think that was only fine. The big deal is only if they will ask for our KYC, as that is one of the traits of being centralized already. To automate stuffs is also a good idea, just like what we see in a typical Blockchain/decentralized service. I think that is possible to implement in a social media or forum platform, as long as the devs are good enough.