What Ever Happened to Flickr?

In 2007, Flickr was the most popular dedicated photo-sharing site on the web, and growing exponentially in terms of new images uploaded. There was no Instagram or Unsplash around, and essentially that's what Flickr could have become. A decade later, in 2018, Flickr was sold to the relatively unknown company SmugMug.

What could Yahoo!, the site's former owner, have done so poorly in the years in between? How could Instagram have taken the lead so quickly after its launch in 2010? Is Flickr headed toward a virtual grave, or is it still a compelling service for some people?