Just because it was tough on a system doesn't mean it was poorly programmed. Misinformation is the root of all evil in this world!
So yes it's poorly coded. The giant memory leak in that game just screams poorly coded to me.
As for proof? Why don't you google "Crysis memory leak" and look at the hundreds of threads all over the internet on it.
Edited by CovertCover - 1/9/11 at 2:55pm