there are totally legal and and ethical ways to do ppi - for instance you can get some content and then require a person to install the codec to get it - you can put up a little peep show-teaser (w/drm) and tell the person to follow the link to your landing page where they may, or may not, choose to install something to get the "real deal show" -all perfectly legal and ethical (why not?)

so when you say 'get paid thru pay-pal -yeah! absolutely. Who's gonna know if it's greyhat or blackhat but you?