They don't use forced ads they give you the code for the ads so you can place it where you want. As for the ad free hosting; the more you post on the support forums the more points and x10cash that can be accumulated. X10cash can be turned in to buy domain names, get rid of ads from your site and even to get a paypal payouts. Yep you can get real cash buy turning your forum points into x10cash and have them give you a paypal payout.
You can also automatically unsuspend your acccount and account creation is also automatic.