It's been mentioned but I think they only get added to the list after confirmed payouts to avoid promoting scams.
Yeah, I'm not sure yet whether to add that one or not. I don't want to wait for the first round of payments for each new campaign just to see if it's a scam or not. On the other hand, there have been so many ad-scams recently...
In other news: There's another ad-campaign (https://bitcointalksearch.org/topic/we-want-your-signature-the-highest-signature-payout-to-board-members-432705) that pays based on your forum-rank. It offers upfront payments to be paid within a day of signing up, so we should now quickly if it's legit or not.
I'd just wait until there has been confirmed payments. Most of the new ones turn out to be scams.