This is a list of people with their own tags here:
hitler x11
mao-zedong x2
saladin x2
richard-i x2
stalin x1
king-dahir x1
Aside from the hitler and maybe the john-f-kennedy tags, they are all rarely used. Should every historical person be eligible for their own tag? In my opinion, people you'll never hear of except in a Wikipedia stub shouldn't have their own tag. But then, where should we draw the line? Should Thomas Jefferson get a tag? Should Livy get a tag? Should Ephialtes of Trachis get a tag? Should German Gardiner get a tag?
Should there be requirements for a person to get their own tag?