I actually run The Lounge, the ad network in question. I would be very surprised if it was that link as most of my other publishers run the same link and it has

I actually run The Lounge, the ad network in question. I would be very surprised if it was that link as most of my other publishers run the same link and it hasn't affected them in that way. It is also similar to what many other ad networks do, include a simple link back to the ad network. Of course Justin is free to remove it just to see if it makes a difference.