I think this summarizes what they do: "Does gpl-violations actually have any ability to do this ? In the situations where violations have been found and actio

I think this summarizes what they do: "Does gpl-violations actually have any ability to do this ? In the situations where violations have been found and action taken enforcement has been successful. This includes out of court settlements with several large vendors and a legal injunction against Sitecom. We strive to resolve issues amicably. When this fails we resolve them through legal actions." "Why do you send warning letters to GPL violators without contacting them first? When we started enforcing the GPL, we tried it by sending e-mails, faxes and letters ourselves, rather than going through lawyers. However, those letters were simply ignored in almost all cases. Therefore, it is our experience that trying informal means of communication is not worth the effort, especially since it reduces the amount of time we have for applying to a preliminary injunction (in Germany), and therefore puts us into a worse position. Formal warning notices sent through our lawyers always tend to draw attention at the appropriate management level, and therefore tend to be addressed with the required seriousness for a major copyright violation. "