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.
barack-obamabernie-sandersbill-clintonboris-johnsonche-guevaradonald-trumpelizabeth-warrenemmanuel-macrongeorge-w-bushhillary-clintonhugo-chavezimran-khanjeremy-corbynjoe-bidenjulian-assangejustin-trudeauleopoldo-lopezmarine-le-penmichael-bloombergmike-penceputinrecep-tayyip-erdoganrichard-nixonrodrigo-duterteronald-reagansadiq-khansteve-bannontheresa-mayvladimir-putin
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.