It's still a fact that waterbenders are more easily defeated on land then in the water, and times that i have seen a fountain randomly or a small pool apart from a huge body of water? almost never. Sure in a 1vs1 you could go on land, but on most big servers when you go on land in the pvp arena your just gonna get bombed by earthblasts, fireblasts and airswipes
Asking a waterbender not to watercamp is asking them to limit themselves.
Just so you know, i don't like watercamping either, but i understand why it happends. There aren't enough sources on land in pvp area's. People destroy plants and i almost never see a small pool of water.