Are you planning to upload some content to Quadropolis - Great! Read on!
The Cube Wiki article Distributing Maps contains the original text of this guide;
This deals with the specifics of Quadropolis postings.
It tries to prepare you for providing well rounded off content to the community and avoid any unwanted tags, maybe even get you a starred content one. ;-)
Refer to the Packaging Guide for information on how to fix this.