I have a feeling that pornstars know all about the "unsolicited, easily quotable backpat" trick. Enthusiastically edorse random things you like, and--if the recipient persoh/company understands marketing-industry SOP--you'll get endorsed in turn. (You can notice this in, for example, every blog post or podcast Patrick McKenzie has put out lately. It almost feels like he has a secret cabal he's colluding with to pass traffic between then, for all they mention each-other in shining terms--but it's just unsolicited praise. A war of gifts, you might say.

One of those pornstars is wearing a shirt that reads "@eat24 is the official sponsor of my muchies." I'm not sure how that could be less organic without removing all the carbon.

I could believe they are organic or at least not specifically bought (note the swag in one picture).

Fun fact: IANAL, but it might actually be illegal to have people tweet stealth paid endorsements on your behalf: http://www.business.ftc.gov/documents/bus71-ftcs-revised-end...

I understood they are quite clearly paid. Part of the campaign.

I didn't get that implication, I assume they are paid in some way. Even if not on an outright per tweet basis.