An argument about an underground drain in Vienna

Hello, Andy from the DWG here.
A mapper in Vienna is adamant that an underground drain in Vienna should not have a “tunnel” tag on it. Other people think that it should. A very long changeset discussion is here.

A picture of the exit into the stream to the north is:

I’ve created a thread over in “tagging help and support” to discuss. In order to keep the discussion together, it would make sense to contribute there.
Best Regards,
Andy

Locked, as mentioned - please contribute in this thread Argument about an underground drain in Vienna
You can answer in german as well.

Gesperrt, wie erwähnt - bitte in dem Thread Argument about an underground drain in Vienna beitragen.
Antworten in Deutsch sollten möglich sein durch die Foren-Übersetzungstools.