OK, I have no real idea what you are saying there, but answer me, please, why have you never taken the machine to an Apple Store to get it fixed? You have mentioned many a time how much you dislike your MacBook... yet you still use it?
Anyway, as far as the OP is concerned. I am one of the heaviest, loudest, hardest typers I know, and have been typing on my MacBook that way for teh past 15 months.... no issues whatsoever.