I've used Paypal for traffic buys, but because they can be for adult/mainstream not
"adult sites" so I guess it's OK by them
Apparently Paypal is being spilt off from eBay for various reasons, so maybe in the future. There is a lot of money that is being left on the table by not allowing adult.
http://www.businessinsider.com/ebay-...someday-2009-9