Apparently, a solid grasp on the obvious is not for you.
I think the issue is that you thought you were bringing much-needed information to a group of ignoramuses whom you assumed didn't already know that the Banshee's actual model nomenclature is YFZ350. Tell you what, let's put the shoe on the other foot. Go into a Yamaha dealership and ask for a part for a YFZ350. Nine times out of ten, you will either get a blank stare, or "oh, you mean a Banshee?" as a response. That should give you some idea of just how pointless your "revelation" to us was.
Bringing up this topic was, on your part, tantamount to telling people that they're wrong for calling generic-brand tissues Kleenexes because Kleenex is actually a brand name. If you say Kleenex, everybody automatically knows what you're talking about. It's the same with referring to the YFZ450 as simply the YFZ. Seeing as everybody on this site knows exactly what a Banshee is, and isn't pretentious enough to refer to it as a YFZ350, when someone says YFZ, anybody who doesn't need to be told when to inhale and when to exhale can automatically assume that the YFZ450 is being referenced.
So, in summation: shut the fuck up. Seriously.