Almost everyone has been positive. There's the rare hater which of course just fits their personality. I just smile and nod along. I never "shoot" back, but once in the company of a couple haters, someone else asked if I got hungrier since cycling to work. I said yes, I eat more ,and since July lost 10 lbs. The haters, who happen to be obese, shut up after that. The silence was deafening and music to my ears.