The dependency on Flash will shape the market segment that is likely to participate. Overall, the linear nature of video means more substantial time commitments than a text based format: skimming video is hard, amateur webcam video of arguments is a use case for skimming, and people who produce high quality video probably have other options.
Maybe a Twitter like approach...20, 30, 40 seconds limit might work.
Maybe a Twitter like approach...20, 30, 40 seconds limit might work.
Good luck.