I believe this should be changed so ꕺ can not be the last character of a name at minimum. This could be a bug in my opinion because it provides confusion with diamond mods. Although other symbols are blocked from what I understand but this does technically look different.
I have changed my name to such to demonstrate the confusion at least temporarily.
They say imitation is the greatest form of flattery so maybe this should be accepted because to anyone who is familiar with SO I doubt this would cause an issue.