I like the idea of being able to show my appreciation for the effort some members go to to help me/others, without knowing them personally and without any personal gain involved. Not many places these days where you can find that anymore - unfortunately. Would never give neg rep for not agreeing with them thou, that's what a discussion type forum is for - to share personal views and ideas with others on the same subject, anyone is free to take or leave the advice given.
So for me keep the pos and eliminate the neg points.
Your pleasure is my business !!!