Quick round games have a dependance on users BEING there when they are announced, no good to someone who only checks in once in a while.. the best uptake is games announced ahead of time... like 12 noon or 8 pm or whatever... the day before. That way you know and can be ready and so forth. Some of us really like gambling, but this is the first time I've seen your post.
Exactly my thoughts, i really like these rules. If you can promote your game better, it should be succesfull!