A local lake near me, Lake Tarpon, used to have a real nice boat ramp at the north end of the lake which was perfect for jetskiiers. The neighbors near the ramp (which was in place when their houses were constructed) complained of the noise from the jetskiiers on the weekend, so the county shut the ramp down completely. During the week, the ramp was usually empty, with maybe 2-3 trailers in the lot at any given time. All it takes is just a few people to gripe, and the counties will jump. Especially if it's near election time for county seats.
There are some pretty fast boats on the lake, you have to keep your eyes open all the time for them. The most reckless people out there have got to be the pontoon boat guys or the guys on the smaller boats towing tubers around. They are too busy drinking/watching their friends on the tube so they don't look around at where they are driving.