Can be positioned as somewhat advanced feature for those who want unique names on Memo.
Also, Memo can have special “associate domain name” action, and if this domain has “memo”:”%account address%” in its TXT DNS record, the UI displays domain name in profile
If Roger has performed “associate domain name” action and put rogerver.com in opreturn, memo backend fetches dns record, verifies it, and if ok UI dispolays green mark next to name