The tags for Persona's Personae were a bit of a hot mess. Many lacked qualifiers, others were instead qualified as (megami tensei), which can create confusion with SMT demons of the same name, sometimes even linking to the wrong tag. Some even had duplicate tags, one qualified as (persona) and the other as megami_tensei.
I've fixed most of this mess, but what's left is the incosistency of the persona qualifier itself. Some use the instalment number (e.g. Arsene (persona 5), Take-Mikazuchi (persona 4)), while others just use (persona) without a number. So what should be the prefered way to unify these? Numbers or plain persona?
One other thing: Palladion, Athena (megami tensei), and Ariadne (megami tensei) all have one banned post each left, so someone who can edit banned posts should update their tags there.