I think the sticking point is where you have the public participate in your online open data enterprises. Do you have a wiki with public input? Do you croudsource? Tag cloud? Allow comments on YouTube where you post your official Fed videos? Who monitors, cleans up, or addresses questions? This is a real resource hog (people vs machines) and then we move into posted data that is misused or misinterpreted and reposted on something this is, or looks like, a real site... I see both sides of the problem and solutions and it is just plain complicated. I say move forward with social media but be aware and careful!