[OSM-talk] How is there not any creative-type (US) copyright in OSM data?

[John Smith]

2009/12/14 Brendan Morley <morb.gis at beagle.com.au>:
> And the copyleft mindset of the LWP continues to perpetuate substantial "legal [...] restrictions on [...] use."  So really, the OSM project has
> failed to deliver on this latent demand.

I've seen the same comments regarding GPL v BSD licenses, free and
open are rather ambiguous.