This answer from 2016 seems to suggest that tags of this kind are meta-tags and should be deleted. Should we apply this logic to the current individual-specific tags, or should we allow them in certain circumstances? Below is a list of the current individual-specific tags that I'm aware of.
At the very least, we should agree on what style to use - above are examples of firstname-lastname, firstname-middle-last, & just last name. If we standardise this, we can avoid duplicates such as putin & vladimir-putin.