*shrug* If you have data that has no object handle or var pointing to it, then a GC will free that memory. If you've nothing pointing at it, are you still using it? Your dismissal of GC out of hand is hardly scientific... ;P Though sure you're doing fine without it so why use it, but I dont see what point you are trying to make. On the other hand, maybe you wouldnt need so much RAM if you cleaned the memory up ;P
It's horses for courses though. I've improved as a programmer massively over the years, and i've been programming a lot of years, so I like to think i'm reasonably good these days. I do tend to do things my own way though, even now my boss dispairs - as I switch between delivering masterpieces and absolute junk each week. What works for me might not work for another programmer and vice versa, like at work I have to use spaces instead of tabs - if anyone ever dared infected one of my own personal source documents with an indentation comprised of spaces I would invent new and painful ways to hurt them, which may or may not involve a trip to the large hedron collider.