Ok he's on cherry mx blues and says they are meant for gaming.... Can I punch him? lol. I told him what they are and he says membranes are better for typing... so please help me convince him before he makes a mistake buying a membrane KB trying to save him. 
I think that membrane keyboards are excellent for typing, though not the best. Of course I'm talking about my model M buckling spring hammer over membrane keyboards. Only the model F is better for typing in my opinion.
Sadly topre do not make a membrane keyboard (as far as I know), or you might get him to try it.
I'm currently using my kmac as a paperweight right now, coincidentally.