This sounded so interesting and I was thinking that I have another souce of "free" gifs. I wonder why I immediately thought of free. 😄 So to be sure, I checked the terms and conditions in the website and noted this:
The Services may contain copyrighted material (such as text, graphics, photographs, images, and illustrations), trademarks, and other proprietary information and materials of us and our licensors.
That means use of the gifs is not totally free. Users have to exercise diligence in using the service.