I think he is getting down modded because game executables are usually packed when they come from the distributor and the crack groups pack them again some more to save space and protect the changes they made from competition.
Cracking a game like that involves running it getting the image of it from memory (perhaps multiple times) and then reconstructing important loader structures (library imports, sections, resources). And only after that can you actually concern yourself with removing or overcoming the actual software protection
I know how they are cracked (http://news.ycombinator.com/item?id=1343066). I was wondering why no one was doing a file compare on the original Myth cracked exe and the one from Steam.
But you're wrong about game exes being packed by release groups. There is nothing to "hide" from other groups. Once you remove the commercial protector (SecureROM, etc.) the rest of the patches are pretty trivial.
