Why not add another checkbox in the Game finder?
"Waiting for 1 player" could come in handy in one or both of the following cases.
If you want to join, let's say, a six-player game, you go to Game Finder and check 'waiting for players' and '6'. But there will be pages of results where only the game creator is the first player and noone else has joined in yet. I never join those: if you wish to play people around your own rank, you don't want to risk 4 cooks or 4 captains joining in behind you... If you're the last one to join, you know who you're gonna play.
Second: if you're no premium, you don't want to wait for 4 other players to join before the game starts. If you join in last, you're off...
(I hope this question wasn't asked before, I didn't feel like checking 86 pages of topics...)
so my idea wasn't that bad 
