Yep. And the ones that do know and want to post to our communities would probably have the right intentions anyway

I think you only made a case for having two or more levels of instance block, that already exist. One due to objectionable/illegal material that cannot be overridden, and another for something like threads where a significant number of users may not want to be opted in automatically, or want to block it due to purely ideological, non-illegal reasons, which would effectively be put in place by automatically adding the instance block to user accounts that can be removed at any time, which arguably can already be done with minor changes. That’s essentially what dansup is doing, complete with including a command for Pixelfed instance admins to apply the optional block to all user accounts.

That’s not how Bluesky does it. Sure it empowers users which is great but if there is a PDS for example with lolicon, one I don’t see it making past the content filters but if it did the BGS/Relay would blacklist that PDS