By now I'm sure the WGT staff is aware of the player "Mihi" and his actions idling in and tying up the group "lobby" for hours at a time. Many players have complained because he has been searching for players but never actually starting the game. He's probably not even at the computer.
I'm guessing that when you "Create a Group" you are placed in the queue. This queue probably sends people looking to "Join a Group" based on what groups have been in the queue waiting the longest. Since Mihi has been in queue for hours upon hours, he's getting first priority to players.
I sat in his lobby watching people come and go, letting them know they were just wasting their time waiting for him to start. As soon as one person left, another would fill the spot almost immediately. I then decided to create my own group. There I sat searching for players for 5 minutes and not one person was directed into my group. I imagine people were still flying in and out of Mihi's group during that time as they were before. This supports my 'queue' assumption.
This problem was supposedly addressed yesterday, but unfortunately Mihi is back at it again with little to no regard for the other WGT players.
While sitting in Mihi's lobby I noticed that when a player would finally become fed up and leave, their name box would change from green to red and it would show 'Declined'. From my point of view, the box would just stay red. However, when you are the one leading the group, you are shown that it goes back to "Searching for Anyone". That just leaves the door open for some other poor sucker to get dragged in.
I think the easiest way to fix this problem is to force the host to re-click the search button and not have it done automatically when someone leaves the group. Once 3 people get tired of waiting and leave, it won't search for new players and it will drop the host out of the queue.
Sorry about all the words, but I wanted to make sure this problem and it's effects are made completely clear to the staff.