Checked the categories and dating type ads are (still) blocked on our own rotation. Next time you see it pls do a screenshot and do a firebug report for that element (it's an extension for Chrome and Firefox) alternatively you can also give me the location of where the ad goes. It might be an ad not under our control.
I haven't seen one since I first posted about it. Maybe it was just a few that slipped through the filter or something.