Methinks this ad firm apparently has access to way too much information from your phone.
While I could see them getting some info about which app is accessing their ads, seems like they'd have to dig pretty deep to get whether or not an iPhone was jailbroken. Knowing if an app was pirated would also mean they are tracking who is using apps viewing/accessing their ads, even if you don't tap on the ad.
If you even use an app that displays ads, big brother is watching you.
Ironically, there is an app available for the evil JAILBROKEN phones called PrivaCY that blocks some of the information gathering features of some of Pinch Media's apps...
Here is what Pinch Media is able to ascertain from their ads in their apps:
http://www.pinchmedia.com/blog/pinch-media-user-privacy-and-spyware/