Why do people rip other brands of bikes...?

..that they have never owned or worked on let alone even ridden? I understand brand loyalty and all but to rip your fellow biker and his choice of ride? what happened to freedom of choice and respect for that choice? I ride a harley and have freinds that ride bikes from the big 4...sportbikes and cruisers.None of us knock the others bikes.I even let my sportbike riding buddy ride my Harley and he absolutly loved it.His first ride ever on a Harley.Come on people...show some respect