So I think the new button system is a great idea. However, I have stumbled across many RPGs which are marked green, but there has been no activity on the board since December or very early January. It appears that the Directory Checkers give it a green mark even though the only post in the last few months was an advertisement on the board. So I propose that the ads posted on the board by other members/guests should be discarded when checking for activity.
Edit: For example, check out
this board. It has a green button, but the board itself has no posts--save an advertisement from the 4th of March--since January 4th.
Upon reviewing the topic which first announced this system, I noticed that it says that the yellow button will only be given when the board has been innactive for two months. Maybe this should be changed to one month (the others do not have to change, though). If a board is innactive for a month, it is highly unlikely that a new member is going to join and turn the activity around. If for some reason the board becomes active again thanks to the admin, the administrator of the board could PM a directory checker to move the button to green. I hope this all makes sense.