"Newell believes that users are as important as developers and should even be able to assign quests for other players in games. He believes the next logical step is that even a store should be looked at as user-generated content."
Completely the wrong way to look at it. Modders have never been in it for the money. They have never seen themselves as "developers" of the game they're modding, but instead as dedicated fans who do it because they want to, they love doing it, and they want to be part of a community that shares that view and shares their work.
The next example me paraphrasing from Dan Pink's TED Talk, "The Puzzle of Motivation":
Remember Microsoft's Encarta encyclopedia? MS got a bunch of professors and writers and editors to write articles for it. Each contributor was assigned a subject and deadline, and made responsible for their own area of expertise. They submitted their articles and got paid for them. It worked for a while.
And then a new paradigm came along. Wikipedia. An encyclopedia that anyone can contribute to. No one gets paid. You work when you want and do what you can. Everyone works together to fact check and fix mistakes and keep it updated. Now it's the biggest repository of human knowledge on the planet, and no one has even heard of Encarta anymore.
The best mods are incredible technical and artistic feats. You load them up and it's astounding how rich and complex they are, and the extent of creation and creativity from a single person or tiny team with a shoestring budget is mind boggling, often better than the original game. That's because it's a labour of love. It's not something someone rushed to meet a deadline to get a paycheck, it's a work that is good because its creator wanted it to be.
The sad part is that Gabe Newell knows this. Or at least he used to.
When I click the Workshop I don't want to see a whole load of shitty shovelware that caters to the lowest common denominators and is made as a cheap cash-in. I want to see what people are making because they love making things.