IIUC pingora is not standalone, but a set of rust crates? Should be already supported by nixpkgs through rust builders.

Who?

That’s correct. It’s also horrible for the comments section because people hate-downvote comments they disagree with, which in turn leads to people avoiding making possibly unpopular comments. It’s really hurtful to meaningful discussion.

They did the same thing with jabber / XMPP back in the day. There was a time where I could use my jabber accout to talk to ppl on FB. They (and also Google) turned that off and unfederated. They’ll do the same thing here.