I don't think large corporations like Getty and AFP should have the freedom to appropriate peoples' work for profit. When people are quoted, it's usually from an interview or press conference given with the expectation that the words spoken will be used. When someone takes a photo and posts it to Twitter, there is no such expectation. I believe in sweeping copyright reform, don't get me wrong, but I think that copyright reform should shift the balance of power away from huge corporations, not towards them. By allowing big companies to use peoples' work anywhere they want, just as long as they attribute it, you're allowing them to turn even more profit without sharing a dime of that with the people who actually did the work to make it possible (taking the photos). Instead, non-commercial use should be allowed with attribution for any reason, and a standard legal framework for licensing copyrighted works should be established so anyone can take part (sort of how song cover licenses have to be granted).