In order to give us less work with the Marketplace, permissions have now been updated. Unless you have 75 posts and have been a member for 30+ days, you can not post threads in the WTS or WTB section. Regular members are still welcome to participate but can not post new sale items or buy requests. The forum manages the permissions every hour. So should you hit the requirements and you're eager to sell or request an item, give it an hour max.