Personally I liked the reps, the good ones are nice and the bad ones allow you reevaluate what you said with no need to change your mind. Restarting at 0 should be OK. It might make sense to restat at 0 every year so that rep points express current opinion and not the length of time on martial talk. As to the weight of the red reps, it seems that most of those with overall negative reps earned them and likely were proud of the accomplishment.
Jeff
Jeff