Between 3 and 4 days to expiry there is an email reminder. I don't like the idea of more reminders because it starts getting close to spamming people.
One more, with Mechro again : http://www.wargear.net/games/join/120819
Just to put my previous message back on the top of the last poster's list as it's more than 3 days after Mechro should have been booted ;)
Fixed.