Know the stalkerish application.

Notorious girl tracking app for Mac. It combines
 public profiles and location information. 

They don't know which journalist's query triggered Foursquare, citing violation of API access policy, to turn off API access to Girls Around Me.
Foursquare struck API shutdown on Friday.

Without IP-information they can´t do it, to produce real profiles about cyber space people, and exactly without that, they are knowing them selves about this spying. This is something unethical instilled by the stalkerish application.
A seemingly smart ass letter to The Wall Street Journal is not enough.
This app by russians, is meant to all be in good for dating,`designed to make geo-social exploration´ but it's real potentially a web-weapon in the hands of stalkers.
.