You know, if I've noticed anything in the past couple years, it's that even if you self-host your own site, it's still going to get hoovered up and used/exploited by things like AI training bots. I think between everyone's code getting trained on, even if it's AGPLv3 or something similarly restrictive, and generally everything public on the internet getting "trained" and "transformed" to basically launder it via "AI", I can absolutely see why someone rational would want to share a whole lot less, anywhere, in an open fashion, regardless of where it's hosted.
I'd honestly rather see and think more about how to segment communities locally, and go back to the "fragmented" way things once were. It's easier to want to share with other real people than inadvertently working for free to enrich companies.
So? What do I care? If some stuff I posted to my website (with no requirement for attribution or remuneration, and also no guarantee that the information is true or valid) can improve the AI services that I use, great.
The end result is that any authors who care about copyright protection will become less accessible. It’s a gold rush for AI bots to capture the good will of early internet creators before the well runs dry,