I've just been pointed to a series of edits (organized by a very large and well known Swiss company)  that have used material from map.geo.admin.ch for edits in OSM. These edits will naturally be reverted, but it would be better if people would not create additional work for the already overloaded DWG.

To repeat: map.geo.admin.ch and and SwissTopo WMS services are completely off limits for any use in OSM.

Even those SwissTopo datasets that have a "free" licence are not openly licensed and cannot be used without special explicit permission.

Simon