Like if I promote a CPA dating campaign for match.com to pop-under eharmony, singlesnet, etc...wouldn't those sites think it's unfair that I'm using a match.com CPA to popunder those sites? Like competing issue?
Or, showing an iPhone CPA offer on Microsoft.com for those who have ad-ware installed?
Are you also allow to bid on any URL...even Wikipedia? A CPA offer or commercial website on a non-profit website?