Maybe a hot take, but I don't know that "privacy" and "anonymity" are the same thing, or that the latter is worth preserving. I would very much like to live in a world where everyone stood by everything they said online with their real identity, just as they already do in the real world.

This was already the case for all of human history until the information age. If you wanted to say something, you had to physically say/print/shout it. And your reputation would be affected as a consequence. This more aligned with how humans are wired - that social actions have social consequences.

If every potential mate and employer was able to review everything you've ever posted online, we'd all be much more careful with what we say, much better able to screen out bad actors, and the wold would be a better place for it.