You can change the sensitivity of the haptic feedback in settings. I myself just set it to full and tapped the back and nothing happened, So it may be possible that your device may be faulty, but then again, it could just be that it is super sensitive.
The people of XDA, including the Devs. Do not have to help you. We all choose to help. Everyone also starts somewhere.
City I live in makes and invented the Kitkat... I run Kitkat on my device. Aww how cute.