I would do this, not mainly, but i have so much useless knowledge about this game i wouldn't mind sharing. knowing that its one less lost soul in the help chat asking if anyone in their map wants to buy coal or something hilarious like that
Instructor could be some arbitrary medal for the player to feel good about. And im not being cute, i love arbitrary medals to feel good about
If you have so much "useless knowledge" about this game, open up a thread in the forums that is titled "Useless Knowledge" and teach people that way. Then in the global or help chats, keep telling people that you have a thread with information to help them.
And medals, Bytro doesn't care about medals anymore because they took away the notification letting us know when we get new ones. Having an "instructor medal" seems like an excuse to pat you on the head and tell you "good boy"