I owned basset hounds. They are notorious for not self regulating their food intake. If I would have allowed it mine would have ate themselves to death. in fact one got into dog food once and passed out in the bag from eating too much.
What do dogs have to do with snakes you say? Just because an animal looks or responds to continuous offerings of food does not mean you should continue to offer them food. It doesn't matter if it is a ball python or your own human child, there are proven guidelines for feeding ball pythons and for the health and welfare of your snake you really should follow them.