I've seen a few recent answers on questions which simply answer Gamefreak Logic. I understand that some questions could only be answered as Gamefreak Logic, but there logic questions I've seen has answers that prove that it can be answered without using it such as this and this and yet Gamefreak Logic alone is answered on both of these. To add a rule about doing research, etc. before answering this could save people from downvotes.
Gamefreak Logic
I don't know if we need a specific rule for this, but as you say "Game Freak logic" on its own is a bad answer. Those questions you link to have much better answers so those answers should be upvoted.