Well no, what I was trying to imagine was something beyond messaging that included public, user-generated content but analogous to common-carrier status.

But perhaps there simply is an inherent problem with being a platform for user-generated content and that it requires somewhat robust moderation to avoid being cancelled, sued, or arrested.

> Well no, what I was trying to imagine was something beyond messaging that included public, user-generated content but analogous to common-carrier status.

I think you need to define was "common-carrier" means.

As far as I'm concerned, once a message is deemed to be intended to be public, "common carrier" goes away for the service that is going to be broadcasting that message to others. The copper/fiber/etc. lines between me and Twitter are still a common carrier, because even though my Tweet is going to be public, the individual TCP packets going to Twitter are still intended to be private.

Technically, isn't there an option in IPv4 for actual "one-to-many" broadcasting ? (Is there in IPv6 ?)

You're talking about Multicast, which does not work over the public Internet.

Yeah, I wasn't really talking about that sort of thing. Just trying to speculate on how you could build a platform that supported user-generated content and resolved the difficulties and bias inherent in moderation mechanisms -- a vibrant digital public square that wasn't overwhelmed by bad-actors.

Any moderation system is going to have inherent bias whether it's humans moderating manually or an algorithm.

Any system for publicly posting messages that isn't moderated will be overwhelmed by bad actors, since bad actors will nearly always be kicked off of moderated platforms.

Yeah, bad actors, starting with spam. Even 4chan has moderation !