It seems that you are very objective and not interested in hearing what myself or the other forum members have to say, so we'll just leave it at that.

Inspect your car before you leave (I even do this in the US), be careful while the car is in your possession, and inspect the car upon return with video or photo proof for your records and you won't have an issue.

I do not work for Hertz. I was a heavy renter in my past role with much less now (but still enough to qualify for PC) and have rented all over the US and Europe (mostly Germany). To be honest, it sounds like you work for the American Arbitration Association as you mention them quite substantially.

Enjoy the day and have a great week!

Editing to add: Regarding your comment on the 2% finders fee and reason to let it go out with damage...I believe the return agents (at least at MUC and FRA) are not Hertz employees, so I don't see how your comment holds value.