I really wonder what the ultimate fate of Flickr and Tumblr will be, especially the latter since the acquisition was deemed "essentially worthless" lol
For some context to pram's comment, by essentially worthless he's referring to how Yahoo recently completely wrote off Tumblr's goodwill value from when they acquired it, which was most of the purchase price. In other words, Yahoo paid a premium because they thought Tumblr had a lot of potential, then... wrote it off.