You know you’re in the bottom of the 99%, when you have to look up the acronym “ROI,” because you truly and honestly have no idea what it means in the thing to which you’ve just been invited: a debate called “Be it resolved: That social media initiatives must pass an ROI test to be worthwhile.”
I would agree that a return on investment is necessary once one gets past the development stage of a website and its related content. However, if you’re doing something comparatively specific (http://youtube.com/durbow, http://music-discussion.net) and you haven’t invested anything other than your time and expertise (because that’s what you have), the “return” would presumably involve other people participating in the website with their own time and interest, such as in discussions.