By "some people do" are you referring to the ones that own one or two snakes for a few months, read a few articles written by a lout, that read or heard that from another lout, and became enlightened experts overnight? J/KLogically anyone that can add 1+1 and make it equal 2, should be able to logically differ between what exactly is power feeding and what is not. I can however say from experience, every ball python in my collection that was purchased as a hatchling was on a 4 day feeding schedule and are still, sexy,gorgeous, thriving and humping animals, and in addition they are not overweight by any means. Would I advocate this schedule to a full grown adult BP? NO, those I feed once a week. Now another scenario, if I were feeding babies on a 4 day schedule and as they were swallowing the rat I take it upon myself to shove another rat in the snakes mouth then that would be considered probably by most "power feeding."