It would definitely help. Use things like RSS feed features so that people can subscribe to updates from your personal site/blog.

DNS is (relatively/-ish) decentralized, and isn't AFAIK, heavily used for data collection. And you can't exactly show ads via DNS.

People do have their own personal websites. Brought to you by SquareSpace.

I strongly believe it would be good. A few friends already run their DNS, so DNS censorship is limited too. Not even mentioning .onion routing.