Unjoin speed tournament if deadline is extended

Concise description:
For speed tournaments that have an entry fee of stars (inventory), there should be an option to unjoin only if the tournament join start time is extended. I really love these speed tournaments, and think unjoining should generally not be allowed. But in this case I joined the tournament around 10:30pm, eventually a start time of 12:00 was posted, and was not full until 12:30. So it is still waiting and not started, but I cannot unjoin. As I write this my 1st round opponent missed his turns and lost via missing 3 turns, likely having joined 2 hours ago. And 6 out of the 16 round 1 games ended via missed turns in this specific tournament: http://www.conquerclub.com/player.php?m ... 9665896549
Specifics/Details:
(above)
How this will benefit the site and/or other comments:
This will provide more incentive to 'buy' into speed tournaments with stars, knowing that the start time posted will be met or you will be given a choice to unjoin only after the start time is passed by with a less than full entrant list. This will encourage more users to enter these tournaments knowing they can back-out if the tourney is not filled, thus not being stuck (hostage) in a tournament, which when started will miss turns and lose in round 1 if player can no longer be online.
For speed tournaments that have an entry fee of stars (inventory), there should be an option to unjoin only if the tournament join start time is extended. I really love these speed tournaments, and think unjoining should generally not be allowed. But in this case I joined the tournament around 10:30pm, eventually a start time of 12:00 was posted, and was not full until 12:30. So it is still waiting and not started, but I cannot unjoin. As I write this my 1st round opponent missed his turns and lost via missing 3 turns, likely having joined 2 hours ago. And 6 out of the 16 round 1 games ended via missed turns in this specific tournament: http://www.conquerclub.com/player.php?m ... 9665896549
Specifics/Details:
(above)
How this will benefit the site and/or other comments:
This will provide more incentive to 'buy' into speed tournaments with stars, knowing that the start time posted will be met or you will be given a choice to unjoin only after the start time is passed by with a less than full entrant list. This will encourage more users to enter these tournaments knowing they can back-out if the tourney is not filled, thus not being stuck (hostage) in a tournament, which when started will miss turns and lose in round 1 if player can no longer be online.