I know this is obvious and I know someone will say no one cares, but since I'm bored let me show, again, this time using Paul Frazee's own words, how Bluesky is stupid:
https://pfrazee.leaflet.pub/3lz4sgu7iec2k
Notice how the "app" is still a fundamental entity in the scenario. An "app", here, is not a client, it is a server everybody that wants to be in that app have to connect to.
An "app" can do anything it wants, it can ban you, it can shadowban you, it can show you ads, it can require KYC for allowing you in, it can limit what you write or what you see, it can be very good but it has all the tools for being very bad, it's just the exact same thing as the big centralized app-platforms of today and always.
Now imagine the year is ~2005 and ATProto is the big deal, all platforms decide to use ATProto: everybody have your "PDS" that hosts all your posts.
Now Mark Zuckerberg creates an ATProto "app" and calls it Facebook and starts fetching posts from your PDS. Facebook is very cool and everybody is using it to talk about all the things, it becomes the "public square". Fast forward to 2020 and you say you don't like dogs, now Mark Zuckerberg decides to kick you out of Facebook for that.
You still have your PDS but you can't interact with anyone because everybody is using Facebook. How is this any meaningful improvement over anything?