A wake is the dissplacment of water behind your boat. A PWC leaves a bigger wake than a 32' baha under headway speed going north up the WB channel. Some people are just inexperienced or more aggressive and arrogant about thier actions and now we have a speed limit on the whole lake.
Chances are if someone is on a dock yelling at you to slow down in a "no wake" zone, the ripples behind your boat could be smaller and thier boat is smashing against the dock it is tied to and your wake is causing this to happen, not becase they don't have a life.