The White House now being on #bluesky demonstrates a major disadvantage compared to #ActivityPub.
I'm all for sharing a social media network with everybody, just like we do on the web. But the administration should have to run their own social media server like they do their own website. That's how it would work on fedi. But on BS, the company is effectively helping Trump do PR. And they still currently get to decide who gets access to basically their entire network (see Link etc).