I would imagine that many wouldn’t want names or photos attached to their name. I don’t want someone to guess my MNS and then get some info about me! Delta Chat is partially against usernames beca...
You can never stop that, but yes maybe no need to encourage people to do it at the DNS level. But it is quite hard to stop these leaks, if you have an email you are still leaking these info. I will stay out of this mess, everyone should do what they want with their DNS records.