[PD-ot] Debian's stance on the Creative Commons Attribution license (CC-by)

[Frank Barknecht]

Hallo,

I just stumbled accros this: 
http://www.debian.org/legal/licenses/dls-006-ccby

It's interesting why debian-legal sees CC-By as "non-free". Quote:

  Summary:
      non-free Restricts modification 
  Justification:

  * It appears (though it's slightly unclear) that credit to
    original author(s) must be as prominently displayed, and in
    the same location, as credit to any other author. This
    restricts modification (DFSG §3).
  * When any Licensor asks, all references to their name(s) must
    be purged from the work. This restricts modification (DFSG
    §3).
  * Use of the "Creative Commons" trademark (or related
    trademark or logo) appears to be a license violation, and thus grounds
    for a copyright holder to revoke the license. This violates the
    "Tentacles of Evil" test and can remove all freedoms the license
    grants.

    This references the trademark notice on the license's
    website where it is not obvious if this notice is part of the license.

I think, especially the trademark issue is noteworthy.

Ciao
-- 
 Frank Barknecht                               _ ______footils.org__