Really? Adopting surnames from professions (Smith, Miller, Farrier, etc. ) was not uncommon in Europe, but the practice pretty well died out before engineering became a profession. And, of course a German would be "Schmidt" instead of Smith, reflecting the local language.
If this were an accounting forum and someone used the name "Montreal Ledger", we'd be just as incredulous. It happens, but it's a statistical stretch.
We're just trying to maintain the illusion that we're a bunch of highly competent and respectable professionals here.
It's all the more challenging since in an international forum, you get all sorts of names even before people start making them up.
Not I have to leave town to find puzzlement. Locally, a popular name is "Thigpen". What are Thigs, why do they need to be confined, and what exactly does a pen for Thigs look like?