Got mail from AdBrite – What does it mean?

I have celebrity site with around 2000 uniqe visitors per day and 4000 page views. 17.000 ad zone views shown on BlackLabelAds. I use BlackLabelAds, because I have also nude celebrity pictures inside. Today I received this mail form AdBrite:
Hello **********,
Your account has been flagged in a recent review of advertising effectiveness. After a careful review of your zones, we have found that the advertising effectiveness of your zone named ************* is insufficient to qualify for our service. We have disabled the zone as a result. Your site will continue to earn money up until the zones have been disabled, and you will be paid in full for all ads that have run to date, in accordance with AdBrite’s normal payment schedule.
Typically low advertiser effectiveness is a result of a site where the site content or site design is done in a manner where users don’t engage with […]

Original post by ZoZi