Kinda. Aside from Pokemon, I tend to hop between fandoms. I once loved Final Fantasy (especially Tactics Advance and Chocobo Tales) at one point, then it became MegaMan (especially Battle Network and Star Force), then Harry Potter, Digimon, and so on, and so on.
Tpbm has ever mistaken some type matchups due to generational changes (e.g. hitting a Clefable with a Steel type move in a gen 4 game and thinking it would be super effective because of Fairy type).