A’ight so as I was typing before, Flickr has changed some things about how they do things after they got themselves bought by SmugMug. However, for our purposes the big change actually happened years and years ago, when Flickr officially deprecated the MetaWeblogAPI.
However, they did not disable it, as you can see on many posts on this here blargh site. What they did do is hide those URLs that are not longer supported, specifically this one:
Flickr: Your Blogs – https://www.flickr.com/blogs.gne
I’m putting that on it’s own line so it’s obvious where the hell you’re supposed to go. So once you’re on that page be aware you can remove links but you cannot add links. They also took away the ability to configure things on their end (like the size of images, the caption, that kind of shit).
Right now I’m thinking of letting it be since it doesn’t bother me too much, but I’m going to have to be on the lookout for a WP plugin that pulls photos in, as opposed to having Flickr push pictures onto here.