Asking users to pay (and go through UX hassles) to register domain names is not a mainstream user experience. 

It was tried many times including with RSS and didn’t work. 

If your protocol design relies on it, it won’t scale. 

Centralized intermediaries will step in to streamline as Twitter et al did with RSS.

Crypto/web3. Author of Read Write Own

readwriteown.com

Not sure I follow - haven’t people been paying for domain names for 20 years?

Maybe there’s a distinction between domains and usernames like ENS and Farcaster? Do you see those as the same (both should be free)?

I like building apps on web3 protocols. DevRel @ ENS Labs. gregskril.com

I think the idea is that people buying domains are not mainstream because they represent probably 1-10% of most advanced Internet users.

Not sure about ENS 🤔