I now ride fixed but i used to ride s/s front brake. I did so for years on many different bikes, bmx, road, mtb and with cantilevers, v brakes, and disc brakes and:
BLAH BLAH BLAH etc etc on the front wheel.
This set up may be indicative nowadays of a certain type of rider - wannabe who doesn't have the skills/desire to commit to riding fixed and who doesn't have proper control of their bike - but please don't tar everyone that has a bike set up like this with the same brush.
Well said ................... + 100