I've been watching this thread closely and everyone participating in it. I will say that I was, at first, completely appalled at the photographs in the original post. I do find the idea of feeding snakes on a cold concrete floor to be unnecessary at the very least, and highly risky at worst. They do perfectly fine being fed in their own enclosures...unless, of course, they have to share that enclosure with another snake.
What I've noticed here in this thread is some (not all!) people making very broad assumptions based on a few isolated photographs...and then jumping on those assumptions as if they were hard-and-fast facts. I've also seen the OP respond to most of these accusations with relative calm and reason...something we rarely see in someone who is really as flippant with animal husbandry as he is being accused of.
I've been in the snake rooms of some of the top breeders in this country. I've seen extremely experienced and knowledgeable keepers handle difficult snakes. In either of these situations, it is SO easy to take a few photographs and display them out of context and cause others to make horrible assumptions based on nothing more than the evidence of those few pics. Rooms get dirty. Snakes poo and make big messes. Take a few pictures the day before cleaning day and you can make the most fastidious keeper look neglectful. Watch an experienced handler try to stretch a wriggling snake out for examination, and snap the picture just so...and you can make the most careful person look abusive.
Nothing wrong with asking questions or offering advice...but let's save the leaping-assumptions game for another time, shall we?