Looks like they've sold the photo-book printing.
https://www.digitaltrends.com/photography/flickr-shutters-two-services/
Flickr was probably the first "social" of social media that took off. Damn shame that it was ignored.
I personally love the user experience on Flickr - looks great on a cell phone and desktop.
I've had my account for 12 years and from my own contacts and other photographer friends the core crowd never left and I think it's starting to gain some momentum again