As a follow up to Dave's last message, we've decided to half the number of contribution points required to turn off banner ads and skyscraper ads. If you have 125 contribution points in the last year you can turn off banner ads. 250 points will allow you to turn off skyscrapers. Rating a few games, uploading cover art, some screenshots, a review and credits will get your rating up to 125 really quick. Visit your Account Information
and change your setting if you want to disable ads.