There was an exploit that surfaced a little while ago that allowed you to get free games from Xbox Live by creating an XBL account for certain regions. Many games and DLC items were then shown as free on the Marketplace. If you downloaded said games/DLC you're at risk for being banned. What type of banned? People are reporting console, and profile bannings. (Not only the new account you made but the account you are playing the games on.) tl;dr If you exploited the marketplace you're possibly going to get banned so wait for it.