Although it won't be admitted in public, these numbers have proven to be pretty close to predicting your next promotion.
The 'average' here at WGT is a bit different, though, than you were taught in your arithmetic classes as a kid. Once your minimum number of ranked rounds is achieved, your average will no longer climb. It will only come down. The end result is the average of the 20 best scores you've posted as a Pro.
For example, you have recorded rounds of 64, 73, 68, 68, 81, 71, 69. If we are only requiring 6 ranked rounds, for simplicity, the 81 no longer counts. Your avg would be 68.83. You decide to play another round and shoot 71. Now, your best 6 scores are 64, 68, 68, 71, 69, and your new 71. The 73 gets thrown out. Your new average is 68.50.
Since you've met the minimum of 6 ranked rounds, by my oversimplified example, your average will never go up again....only down. Your highest round is the two 71's. Anytime you score below a 71, that new round will count and one of the 71's gets eliminated and your average drops a little. However, once you are promoted, the ranked rounds start a zero again and everything counts until you build up enough ranked rounds we can start tossing the high ones out.
So, the point is: Keep playing your rounds, even if they turn out poorly. After awhile, they won't matter for squat. Try and be ethical here and don't quit on the other players that are also spending their time trying to be social and play this game with others. If you are playing by yourself, I suppose it doesn't matter if you are frustrated and quit to start over.
If I'm playing with others, I just try and make it a personal challenge to get back to even par, or whatever I consider good for me, and continue to have fun.....maybe make a friend for a future round. And, I think most players at WGT are the same way, too. It's the community that keeps a lot of us coming back, and that community should be preserved along with the integrity of the game.
Happy golfing!