Development of Creative Commons licenses

[Gregor Hagedorn <g.m.hagedorn AT gmail.com>]

> The most popular element, by far, is Noncommercial, selected for over
> 173 million photos or 70% of the CC flickr subset.

Certainly, but do you have statistics on the ability to re-use? I
believe there is a huge amount of re-use of open licensed works, such
as from wikimedia commons. I see basically no re-use of NC-licensed
works (outside private blogs). I mean not publishing under NC where
the rights to do that are given under private agreements, but true
direct re-use based on the license alone. Which non-profit
organisation can stand in court an claim that it did not get an
advertising commercial advantage by avoiding to pay for a good photo?