I don't think "maintenance" should be taken in a negative way. It would be the feeding frequency it takes to keep a snake healthy and growing at a steady rate.
Some people with more time/less snakes may feed babies at a more frequent interval, resulting in faster growth. If you search for "Munson Plan" you will find an example of a feeding program that optimizes prey size to snake size by weight. A lot of people follow this plan, some more conservatively than others. For beginner keepers, it gives a good guideline of what size prey you should feed your snake at what interval, to achieve a "faster than maintenance" growth rate.
Some people "power feed," feeding as big a prey as the snake can handle without regurgitating, at as frequent an interval as the snake can handle without regurgitating, with the goal of having the snake reach sexual maturity in a shorter time than normal. Most people would deem this method unhealthy.
At the extreme other end of the spectrum, a very few people might brumate babies, for what reason, I don't know- save money? Save work? While this may happen in nature, I don't believe it is optimal for a captive snake that hasn't reached sexual maturity.