primal cannot ban users the caching sever can block content from being seen but cannot block broadcasts users can easily switch caching server in settings menu or use a different nostr app

Vaxx wasn't mandatory. You just lost your job and couldn't pay your mortage anymore. But vaxx was never mandatory.

No, they can't ban people. As far as I understand. But they can hide everything someone shares from being seen by their own user. For example, when I use primal I can not see any of my own comments, but they show up on amethyst.