This is a meta-task tracking abstractly the issues of mentioning merely the names of non-free stuff,
without referencing locations of said stuffor (explicitly) encouraging use of it.
An ideal Free operating system
not only a) consists purely of Free stuff,
but also b) interacts only with external Free stuff,
and c) talks only about Free stuff.[[ http://www.gnu.org/distros/free-system-distribution-guidelines.html | FSDG ]]-free systems are forbidden to "steer users towards obtaining any nonfree information for practical use, or encourage them to do so."
[[ https://www.debian.org/social_contract#guidelines | Debian Free Software Guidelines (DFSG) ]] covers a),
and [[ http://www.gnu.org/distros/free-system-distribution-guidelines.html | Free Software Distribution Guidelines (FSDG) ]] additionally covers b),
whereas c) is arguably outside the scope of both DFSG and FSDGMerely mentioning non-free stuff is arguably tolerated, although certainly relevant to care aboutideally should be avoided.