Is there something 'more to it' on flickr when someone marks favorites?
Often, when I notice that someone has marked one of my shots on flickr as a favorite, I will take a look at that person's work to see what they do and, maybe, what led them to mark one of my shots as a favorite. What I frequently find is that the person has very little work of their own, but hundreds of favorites, often with no theme that I can discern.
For various reasons, I never put copyright notices on my work, and I suspect that the people are compiling databases of free artwork that they may want to use..


