I don't care if you stand on the pegs (I do), it's the idiots I object to. Wheelies in traffic, lane splitting at highway speeds, 100MPH wearing a helmet (with mandatory fake mohawk), T-shirt, baggy jeans, and sneakers.
If the only one your riding endangers is yourself, I don't care.
After months of being blasted out of a sound sleep by a [censored] on an open-piped chopper EVERY NIGHT, I would have had an ear-to-ear grin on my face while taking a baseball bat to the idiot rider.