One potential issue with MNS though: if I have to pay for my name with bitcoin, wouldn’t it be trivial for every name to be doxxed? If you’re just paying the fee with onchain bitcoin?

Yeah well, unfortunately I think this must require a hosting provider. At best like if you push Nameservers to their extreme you can add a TXT record with Bio and a TXT record with a link to your photo, or use data URL to encode the entire image .. and the Nameserver does the profile job. But if yo...