A lot of commenters here are having their minds blown by this. And while I also love this I get the sense that many others here are maybe too young to remember that this kind of open access to data used to exist for lots websites. It inspired companion sites and loads of creativity. I find it tragic really, what the internet has become. I hope federated, and even more-so p2p, protocols take significant foothold on the internet and help revive this spirit of the web. The corpo-web is so fucking boring.
BS is a cynical data-grab and will lock down and back-stab its users as soon as it can do so and be competitive.
I'm thinking that it's a cynical way to put all the data on an open network rather than a gated and paywalled one. As far as I can tell, Bluesky is still entirely funded by Twitter and that will eventually be cut off. They're betting on the Google/Mozilla type relationship to be maintained for now. They need to make the indexing service easier to replicate before that happens or the network will collapse when funds dry up.