I can't see anything wrong with other bike related threads or conversations as long as they arn't pasted all over the 'All about TDM' part. I know some people will occassionally refer to either other or previous bikes, in topic conversations, although if somebody was coming to Carpe just to talk about another make of motorcycle whether it be a BMW or Honda or whatever, and never a TDM, then there might not be much point unless they enjoy talking to the people that are here about other bikes.
Lets not forget that we are all bikers, all get our kicks off two wheels, and I myself have had and have other bikes as well as my TDM. There was a story around here not so long ago (Not sure if lost in Carpe crash), that somebody had met a Honda 90 rider who loved it, went everywhere on it, and wouldn't ever want anything else. He is still getting his kicks off two wheels!
So as to the original point, no Im not sick of seeing it. I have nothing against BMW GS bikes, (Personally not my cup of tea), but each to their own. (I did get peed off at a GS rider at the weekend who tried to cut me up), (he failed), but there will always be idiots out there riding and driving all sorts of make/models of cars and bikes.