If you've ever read Enders Game, Valentine and Peter got on to the 'adults forum'(not that kind of adult thing), and they were completely anonymous. I can see that kind of forum existing. I don't see the internet staying as it is to be honest, I imagine we'll be looking at homebrew internet via bouncing off satellites, even amateur sats or PTP links that would be incorporated into a parallel internet(s). It won't be long before someone hacks the starlink receiver and starts their own thing. Connecting to the old internet will be a normal hack.