The psychic tag has no tag info/wiki, but the tag currently appears on 8 questions. 6 of them are about Pathfinder (all but 1 of those are about the Psychic class, as far as I can tell), and 2 are about D&D 5e. One of those last two is about psychic damage; the other more recent question is apparently asking about psychics "like ones described in the expanded psychic handbook (D&D 3.5)".
There seem to be two other related existing tags, though neither are totally identical.
The psionics tag info says:
For questions about psionics, a pseudo-scientific term referring to unnatural mental powers, including telekinesis, psychometry and telepathy.
The concept of psionics seems similar to the abilities used by the Psychic class in Pathfinder, but it seems like the Psion also exists as a separate class with its own abilities so I'm assuming it's different from psionics somehow.
And the mystic tag info says:
The mystic, also known as the psion, is a class in Dungeons & Dragons that is able to harness innate psionic abilities. These abilities are often distinct from and less common than traditional spellcasting.
Again, the concept seems similar to that of the psychic, but I'm assuming there's some important distinctions. If so, it makes sense that psychic should be its own separate tag.
What exactly should the psychic tag be used for?
Is it distinct from psionics and mystic? Assuming the tag should remain, should it just cover the Psychic class from Pathfinder (and classes in similar RPGs of the same name) - if not, what kind of questions should it be used for?