The sites that require you to log in are precisely the same ones that are crawling with bots. The personal internet or "small web" is, and still will be, full of real content. There are also lots of bot websites that are trying to be small web, but since it's an actual social network and not a giant pool everyone pours stuff into, they don't get traction. If you do find a website that seems to be human but links to a thousand AIslop sites, you'll stop following that guy's links.
What they mean is those are the sites that will require attestation. It's pretty quaint to think that people who don't like bots would rather play wackamole with bots when they can just flip a switch and they're gone.
