I get the argument, but are there practical examples of widespread censorship at the "domain" level?

I understand people getting dropped by AWS, or Cloudflare, etc... I'm just curious how far down the stack censorship gets in practice.

This is particularly relevant for systems like #bluesky that rely on domains as a source of trusted identity. Even #nostr  kinda does this too with NIP-05, although the npub is still the core of trust...