Sorry, WOT relays say FU lol, sorry, anon
All of your points BTFo'd by Web of Trust
Discussion
There are other ways of achieving a web of trust.
Very few of the clients implement user-level WoT in a way that doesn't lend itself to censorship, especially if it's opt-out rather than opt-in; combine the flawed relay implementations with the poorly designed client-side ones, and you have Xitter and other centralized social media with extra steps.