It's true that Mastodon is somewhat better if you don't want to be found, though it's hardly a guarantee. From a "seeing like a state" perspective, Bluesky is more "legible" and that has downsides.

But I think there's room for both models. There are upsides to more legibility too. Sometimes we want to be found. Sometimes we're even engaging in self-promotion.

Also, I'll point out that Hacker News is also very legible. Everything is immutable after the first hour and you can download it. We just live with it.