[martin_a]

You can downvote him all you want, but it's true at the core. §202c of the BGB heavily limits what can be done, even by legit researchers, and it's often being critized for that reason.

For anyone interested, the Wikipedia article might give an overview (only available in German right now): https://de.wikipedia.org/wiki/Vorbereiten_des_Aussp%C3%A4hen...