I don't know, I haven't found that color makes any difference in the way I am treated. I haven't been yelled at for many years, but I do notice that when I ride my Voodoo (a bright yellow hard tail with lights, a rack, and pannier) around town, I get treated a bit more politely by motorists in that they might stop and let me go first in certain situations. Usually I am wearing slightly different clothing, too; like a skort or terry Spinnakers, mtb shorts instead of regular cycling shorts. I think it's that we look more like "regular" people to motorists when we are not in full roadie gear, but honestly, I don't care what they think. I commuted on my road bike and I didn't notice any difference in the treatment I got during commutes than when i just go out on a "ride."