>I don't think he can do anything that I cannot do (or any other random person on fedi, for that matter)

Everyone has the capability of doing so, with the tools they can access. However its that restraint that is key. Many times he's failed on this front.

>So far, it seems to me that the worst thing he could possibly do is block your instance.

Most annoying for sure but the worst, which actually pissed me off, was when he threaten someone to not talk to me and threaten them that he will block them if they continue to do so.
That's just pathetic no matter who it is.

>If you have anything concrete, feel free.
I've got plenty, confirm one more time and I'll send you my mega complication.

This goes from doing 180 to his rules, hypocrisy, doxxing, defamation, and false reporting instances to datacenters.

Though if you don't care, then there's no need to send.
I'm not here to tell you who you can be friends with online. Most folks on here are grown men. But your friend is no saint.

There is some validity to the criticism.