Rollsigns? I wouldn't give a damn if an R1/9 showed up on the track, as long as it gets me where I am going, fine with me.
That is why I wonder, what is there to beat out of this? In the end, A TRAIN IS A TRAIN!!! We should not care what goes where, we are just the customers. If we were the MTA Board Officials, or whoever has to deal with this, then I see the problem, but we are the customers, and we have to accept the fact that a train is a damn train.
To make an analogy here, you would definitely want to be driven to school in a limo everyday instead of taking a taxi cab. But in the end, the taxi has always been reliable in what it does, and it will still get you to school. I hope that there is atleast one person that can make sense of my point.