If you look at my Tumblr blog, you'll see I do that consistently even when I grab the screenshot and post it manually rather than “share” it from a Web page to Tumblr.

http://brooksjordan.tumblr.com

Why didn't I do it this time? I didn't see how to easily pull it over from Flickr and keep the attribution with the WordPress image loader and got lazy.

Obviously, that's stupid because I could have just linked manually.

So, glad you left a comment and consider it done.

Update: I've linked directly from the photos to the Flickr page as well as linked from the title and creator's name underneath.