Yeah, I don't know why this hasn't become a thing. There seems to be so much "Latent value" locked up in the semistructured data (in HTML format but not in machine readable format) that could be unlocked via crowdsourcing with the right tool. That's what I want to build. I just think there's so much value in harnessing that. The interoperability you can enable of bringing data out of silos, and mashing up actions and values from different contexts...I mean, we need existing web content to be part of web authoring in a first class way.