Since many 3v3 tournaments have been started in the past but none have been fulfilled because of inactivity, I have come up with an idea around the inactivity problem. Very simple actually, instead of just signing up 3 people, you can sign up as many people as possible in order to ensure that the games will be played by the due date. That way, no more excuses can be made about not playing the game in time, since that would technically still be the team's fault for not planning ahead and adding more active people to the team.
cascaval