I get a mixed response it depends where abouts i am and who is comming past in my village the old people call me stupid and a vandal. But the younger adults dont care, nor do the police, and alot of the younger people think its cool.
I get the impresion that most people ask wheres your seat as a joke, rather than actually wondering why you have no seat.
But i get asked why my brakes squeek more then about my seat.