I cringe to think what is taking place in the 6 pages of discussion here. This is not worthy of a poll or discussion. (EDIT: I read the 6 pages... there's one person saying they don't use bowls and the rest arguing the same point to each other - that they are required)
Food, Water, Shelter - these are basic rights of anything living. I have had my water bowls out for a day or two because I got distracted while cleaning or other reasons - when I put the bowls back in I have at least 50% of my snakes come directly out of their hide and stick their face in the water to drink.
You're a despicable person if you keep an animal in a cage and don't offer it basic rights. On the scale of maintenance, these are easily in the bottom 5% for time required for care. If you can't provide and switch water you just should not own pets.