„Ad“, „Advertisment“ or „Sponsored Post“. Let’s be honest, do we actually care about those labelings in the Instagram captions? They rather cause confusion instead of being useful. In Germany, this goes all back to an association for warning letters which has already started to mix up the social media game last year. In the last weeks however, the numbers have increased rapidly. Only in the past six months, more than a half of the Germany warning letters of last year has been sent in the area of Berlin only. Apparently, there is a whole system behind it. This is also what the German lawyer Momme Funda said in an open forum a few days ago: “In my opinion, this really seems to be a improper behavior.” So before we go into this more deeply, here are the five golden rules to keep away from a warning letter: