filthy hippies. i mean little criticism in this, but that attitude is along the lines of 'i saw a black man steal something, all of them must be the same' however most people with dreadlocks are filthy hippies and thus, don't wash.
i'll post up a bit more in a bit, but please let me clarify dreadlocks only smell because people don't wash their hair, just like people without dreadlocks, their hair will smell too if unwashed.