I know that you said about offers that don't require a CC#, but with the pay per sale ones(that require CC#) they 1) don't shave, and 2) make you more money over-all, roughly about 10-30% more money over-all.
On that note - we have an AdultFriendFinder offer with over 150 different landing pages, over 50 creatives(banners, SWF/Gif animated etc.), pays $80 per submit, and is converting like mad.
The "per lead" one submits go off of tons of different factors and yes they do shave in the technical sense, but in reality their not truly shaving, your targeting the same people that have seen that same page before and dating networks such as "FriendFinder" they own tons of different sites, such as "Passion", "Cams", "ALT" and several others. Other adult companies own multiple "sub companies", now if the lead signed up on one of the other sub companies of the parent company, why would they pay for something they already have? That's just bad business. Now, for the ones that require a CC#, they are paying for the person that actually purchased something, so they have absolutely zero reason to shave the purchase, unless it's real fraud such as using a stolen credit card number.
We have quite a bit of dating offers, per lead and per sale, check out our full list of offers are our ODigger page -
http://odigger.com/cpainfinity
Check out all of our dating offers at -
http://odigger.com/?s=dating&nw_id=1202&post_type=affiliate_offer&is=1&num=&bcp=n