Your disdain for motorcyclists is dually noted.
Do you really want to know why so many of us "big bad retards" have loud pipes and exhausts on our bikes? It's so that narrow-minded and road-rage infuriated idiots like YOU don't run us over!
Did you ever stop to think that as long as you can hear a motorcycle coming, then you're less likely to catch that rider in your blind spot and take him/her out? Understand one thing, you're surrounded by tons of metal, plastic, and foam...with a seatbelt on (at least if you're remotely intelligent), possibly an airbag or two, etc., between you and the poor fool you ran into. A motorcycle rider doesn't have that luxury, and will likely get hurt if they make a mistake...or if some moron with his head in the clouds cuts him off all of a sudden.
So, you're just going to have to deal with loud pipes, and WE'RE just going to have to deal that loud pipe of a mouth that you so arrogantly run. Next time you see a "big retarded Harley rider" parked next to you, why don't you get out of your vehicle, walk over to the rider, and slap him in the back of the head? Let's see how tough you talk while you're getting the $%!& kicked out of you in the middle of a busy intersection!
Punk!