I just can't stand rules like this

The BBC reported last week on a new workplace rule at a firm in Germany.

The firm, which until recently had a staff of 16, forbade complaining or whinging in the workplace, on pain of immediate firing:

[E]mployees have a clause in their contracts which states: "moaning and whinging at Nutzwerk is forbidden... except when accompanied with a constructive suggestion as to how to improve the situation."

Ramona Wonneberger, chief executive of Nutzwerk, came up with the idea. She claims that "negative energy" puts a dampener not just on workers' moods, but also on productivity.

The story raises several questions. First, these are Germans, right? I've met plenty of Germans and I think only we Chicagoans outdo them in the quantity or quality of our complaints. Second, how bad was the problem that Wonneberger felt she needed to do something about it? Finally, how does one determine whether a comment constitutes a complaint, or is merely the predicate for a "constructive suggestion?"

Deutschland Über Beschwerdeführen, I guess.