Disclaimer: I am not a lawyer. Please consider what follows my unqualified opinion.
I’ve long been impressed with Unsplash. From to the quality of the photos, to the sheer size of the collection, to the freedom of the licensing, all the way to the user experience of the website itself.
As a WordPress theme author who strictly complies with the “100% GPL” rules of both WordPress.org and WordPress.com, Unsplash was a godsend.
I knew I could always count on Unsplash for high-quality photography, without any worry of violating licensing-related rules, because their photos were licensed under cc0.
However, Unsplash recently changed their license, which includes the following sentence:
This license does not include the right to compile photos from Unsplash to replicate a similar or competing service.
This should be deeply concerning to anyone using an Unsplash photo from here on out.