Ask HN: Interested in a site for listing startup ideas you want done?

I know there are a lot of experiences out there that frustrate people, and that they'd like to see done better (think cloud storage pre Dropbox), but unless you <i>have</i> one of those problems, it's pretty tricky to know that it exists, and even then, it's tricky to know that there's a sizeable market for it. But if people could post their frustrations online, it would be pretty easy for would-be entrepreneurs to find good markets, and the rest of us would get better products...seems like a win-win to me. Thoughts?