[1812Overture]

I see no way of controlling privacy in a decentralized system. It'd be like trying to delete all the emails you've sent to other people or stop someone from forwarding an email. Once you put the data out there in a decentralized system, it's out there permanently. Centralization allows for some control.

[russdpale]

This is a big problem I think as well. Do we really want a social network where nothing can be deleted? I have used a few and it definitely makes me think before posting.