I think you've got my argumentation wrong. There's nothing wrong with starting out using AM. But it makes taking the easy way out more usual-- I started with AMap, too. The problem is, that many (not to say most, at least too many) people always ask for tools before they ask how it works.
And to your second queation: I haven't exactly said, that only pros would ever want to read or post anything there. The idea is, that hackers who want to develop something new come there. Before you can develop something yourself, you should first understand the "old" stuff, so I suppose the Tutorial-section would be best.
Furthermore, I didn't say, that you have to be a god of intelligence to be worth something in ROM hacking. :O ...Well, maybe it sounded a bit like that, right? I agree, you can create a good game without hacking the engine at all, and you can forget the game because of hacking the engine. How come you thought I wouldn't agree? I never said anything about the relationship of game design and hacking.