You might still get a letter from some law office to tell you about the violation and a hefty bill for providing this service. I suggest familiarizing yourself with the concept of "abmahnung" in Germany. Quite a racket.
I'm quite familiar with this concept considering I have gotten a total of 2 Abmahnungen, one of which I paid because I did violate a rule and the other dropped after I threatened to take it to court. You'd be surprised how few of the senders are willing to actually go to court if the outcome is not 100% clear because any case could result in a ruling against them and shut down their business.
