What happened to millions of Creative Commons-licensed photos in Flickr?

Slightly OT, but I overheard a few developers discussing online photo services and one of them, a 20yr-old, asked "what's Flicker?"

I knew Flickr had lost a lot of mindshare, but I didn't realize the situation was that bad.

"a 20yr-old, asked 'what's Flicker?'" Wow.

A bug on the explore page. https://twitter.com/FlickrHelp/status/585182093593804800

That's what they tweeted at me. So, good news: the CC-licensed photos are still there. Not so good news: the bug was there for 5 days w/o being noticed or fixed.

It's a bug, which appeared around April 1. Fixed now.