I noticed the Message of the Day in the Melee Arena now talks about the scenario and asks people to sign up, providing a link to the AH Events website.
I think this is a good idea, and a great way to reach players who don't follow this BB. However, when following the link, all the webpages open up inside the small space of the clipboard, which is difficult to read. Also, you need to be registered at AH events in order to use the webpage to sign up for the scenario, which could be another stumbling block for players.
I think its clearly a step in the right direction, though. I want it to work. Just pointing out the possible problems.
I didn't register this time because I couldn't reasonably expect to be present for 3 of the 4 sessions. That requirement may also be reducing the number of registrants. I plan to walk-on as my schedule permits though.