Obviously I can't see the future, and I live in my own bubble....
Isn't self hosting, and small, private/semi-private communities the only way forwards for much of the internet? AI has made content extremely valuable, which in turn has started to destroy the openness of the web. Things are getting more and more siloed, with entry fees.
There's a world where self hosting comes back in a big way. AI ironically makes it much easier.
Self hosting doesn't mean home hosting.
Someone DDoSing the $10 VPS hosting my personal website is no big deal. I don't care about it strongly enough that it must stay online, so they'll eventually get bored and move on.
Someone DDoSing my home internet connection? That's going to be a serious inconvenience - especially with WFH. No internet for a week isn't an option.