The lack of "mass" is going to be a real problem. If you add up the visible numbers of people following their social sites, it is hovering under 25,000 with about 20,000 of that number coming from their subreddit. It would be fine if this was pitched as an ongoing, building movement like OWS or the Tea Party, but the focus is all on a one day protest that currently looks to be ill attended. This could quickly turn into a prototypical slactivism joke.