Yes fountains are very bad...
The water won't be clean enough for your chameleon to drink out of unless you are cleaning it (sterilizing it) every single day which is a whole lot more work than a dripper if you really think about it.
Even though the water is moving constantly, it is still recycling itself which doesn't stop the water from growing bacteria, chameleons are very delicate creatures and even the smallest amount of bacteria can be very harmful to them.
Crickets also like to somehow always find their way into the fountain which contaminates the water and also kills your chameleons food.
And last but not least, chameleons also like to poop in their water, which again is very unsanitary and contaminates the water.
I tried a fountain out for a while but it was alot of work and pretty pointless when you can just get a dripper. I also spray my chameleon and her cage down with hot water twice a day, she loves it, and it's a good way for her to absorb moisture and she usually just drinks the water off the leaves.
So anyway, yes fountains are bad, get a dripper or rig one up yourself and they'll just drink the water as it drips.
