SidBarrett said:
Well, even so, I don't see why this can't be the exception, since as I said, this artist probably prefers to be referred to by both aliases.
When we start fishing around for "I don't see why not" instead of thinking rationally about these things, then suddenly everyone wants "exceptions" and it makes tags look like a mess. This happens to other categories of tags too. If there's no point then don't do it. There are instructions in the original post; their preferred alias is their full name, and the current tag does not need to be changed. Put it in Other Names if you care so much.
I'm leaving it at a downvote. And even if hypothetically, it should be qualified, a full name definitely should not be the qualifier. So the alias is bad if it needed disambiguation, the alias is bad because they use their full name as their main name and the alias is bad because we should not be qualifying for the sake of qualifying. A full name takes precedence over the handle unless the full name is not their primary alias.