 What potential drawback does the author acknowledge regarding the popularity of Creative Commons licenses?
By making these pictures available under a Creative Commons license, now they do. There’s one more important thing: Creative Commons is great for original creative works or derivative creative works, but when it involves human images, it gets very complicated. What we’re trying to do here is to expand beyond just copyright, to make it more thorough from a legal perspective. It’s also an important educational point, so people understand that, in addition to the Creative Commons licenses, we need people to provide other rights in cases where the law requires such rights to be cleared before reuse. I think that at least Creative Commons has become much more mainstream. Creative Commons has moved from a fringy academic discussion to a boardroom discussion.
 Corporations can potentially take advantage of people who use Creative Commons licenses
 If everything becomes free, then no one can make any kind of profit  Too many people will not pay attention to when Creative Commons licenses expire  Corporations can potentially take advantage of people who use Creative Commons licenses  The Creative Commons license will eventually be replaced with something more equitable