Because I forget. I just realized in the past year, I've made 10 positive reps and one negative. So, I'm just a jerk when it comes to repping. Plus I feel giving someone a positive rep would bring me closer to being part of the crew and for the most part, I prefer to be a loner. Its also the reason I don't return pms or friend request sometimes. So yeah, just in case anyone wanted to know whey they repped me and never got anything back in return.