All of the technical stuff is just busy work to bring a game into fruition. I would rather bypass all the programming and modeling and stuff and just have my game pop out of a microwave oven so that I can play it ASAP.
In fact, I would rather the whole technical process be skipped (wouldn't we all)?
Talk Game Theory and Game Mechanics, and then you are talking game design.
I don't see many posters here who are interested in just discussing game mechanics or other design features. I do see a large number of people who want to make their specific dream game, right now, no matter how much thought they've given to the actual design of it. There's nothing wrong with that on a public forum, but until they start developing the skills needed to produce the game it's all just fluff and no amount of design discussion will get them even a single step closer to what they want. Maybe your approach is different from what I'm interpreting it to be, but I personally think it would be kind of cruel to prod people into developing their designs into the greatest concepts ever just to know that, at the end of all that, they still won't be able to even begin to make it.
I do see lots of suggestions that people with nothing beyond a fleshed-out game design try prototyping with board games or pen-and-paper games, which sounds like it would fit pretty well with what you're advocating. But the vast majority of the "I want to make a game!!!" posters here seem extremely resistant to that. Whatever their individual reasons, they want a video game, generally at a level that might as well be a AAA title given how much they can actually do to produce it. If it's not a step that moves them an inch closer to a playable video game, they won't even pretend to consider it.
Maybe you'll have better luck. But I personally see all too many people come here already with "game ideas" who don't care about, or intend to develop, programming skills or other practical game-making skills at all. Unfortunately, discussion of game design and mechanics doesn't seem to interest them much either. It's just not what most beginners seem to come here for.