I was a bit worried about Unsplash after the Getty acquisition, and the current home page of my favorite photo site confirms some of these worries, 50% of the space above the fold is devoted to promoting iStock (scroll down and they take another chunk at the bottom of the page). I think the genie is out of the bottle when it comes to free, open source images. And this page actually shows that there is no quality difference at all between images for which you pay, and images that are free. Unsplash has a responsibility to all the photographers that made their images available under a certain expectation of the spirit of the site. Hopefully it can find a suitable business model that will work for everyone. If Unsplash does not succeed, a new Unsplash will emerge somewhere.