A lake could get fished down but IMO I dont think it would ever get fished out. Once the bite slows it's amazing how quickly people will move to another lake to fish and forget about the other lake.I've often wondered the same thing though when I'm out nightfishing and steadily pulling in fish with just a few hooks out. ALOT of water for little ole me to be catching so many.:o Makes you wonder just HOW MANY fish could be in there at times...then the next thing you know the fish will shut off & humble ya!
Health nuts are going to feel stupid someday, lying in hospitals dying of nothing.