These guys literally call themselves that and they are doing
*Edit* Thanks to Klaus Schmoll I now understand that this group is part of the "Nashi" Youth Movement. After some quick web searches I realize that although people driving on sidewalks are asshats, the Nashi Movement is unsettling. Instead of injecting my own opinion I'd suggest even reading the Wikipedia page below. Also, I recognize Wikipedia is potentially not the best source for information like this, so take it with a grain of salt.