I was a player in the predicion leagues but I've stopped for a number of reasons. First off the leagues are not very consistent, new rounds seem to open up on a random day each week and often we only get a couple days to enter. Some rounds have also closed earlier than posted or days later penalizing those who wait until the final posted date and those who do not visit this site 24/7. Sometimes the posted closing date also changes without notice and if you miss one round you'll never be able to climb to the top of the charts.
Also, there are now 30 predictions we have to make every week not counting the quarterly, yearly and ridiculous ultimate prediction rounds, which are all very time consuming especially if you're actually trying to use vgchartz data to make your predictions and not just dreaming up some numbers. It's also difficult when vgchartz data is for some reason unavailable maybe due to upgrades on this site.
Lastly I realized that I was only playing against 10-15 other hardcore players, it may be because of all the problems or because many lower ranked players will never have a chance to catch up the way this game is set up but many have already given up. So basically there was little chance for me to move past #4 in the ranks unless the 3 people ahead of me also missed a round and although I could have coasted in the top ten for a long time by merely punching in reasonable numbers into the forms, why bother? This game seems to reward attendance first and prediction skill second.