Agreed and not just in the game industry, but everywhere. I've even seen a few people call themselves "ideas guys" here on HN and every time I think something like "so, what? you think I don't have ideas or can't come up with my own? what makes you so great?". Everyone can come up with good ideas, but not everybody has the drive, determination and skill to make them a reality.
True, but I think that "idea guys" on HN tend to be entrepreneurs who like the term "idea guy," rather than a person with an idea and nothing else. Entrepreneurs, or non-technical co-founders, bring skills to the table that a technical person need in addition to the idea, along with a willingness to take on risk. That's a good thing for guys like me. What I call "Idea Guys" usually bring nothing to the table other than the idea.
Non-technical people on HN are also far more likely to understand the work that technical people do, and thus contribute and compensate adequatly.