What you mean is that there should be exclusivity to some naming combinations.

Yes. For 3-letter prefixes and suffixes, since those are already allowed, there could be some confusion. Moving to exclude them in the future in order to offer them to new tribes might not be worth it due to that potential confusion.

I first thought of this when I created a new tribe and token (VYB) and started creating accounts for special purposes, all using vyb. as a prefix. Then I noticed someone posting with an official-sounding account using the prefix. That’s when it occurred to me there could be real utility in acquiring exclusivity for that 3-letter prefix and/or suffix.

For example, I could use vyb.xxxxx for all official accounts and let anyone create a hivename.vyb account after they prove they control hivename.

Providing exclusive access to 1- and 2-letter suffixes and prefixes would be easy, because they are already excluded. We would just need to provide a mechanism for purchasing those rights and tying the account-creation rights for a given suffix or prefix to a given account.