If you're ready to move your own Flickr photo collection to WordPress and feel comfortable on the command line, you can go straight to the Flickr to WordPress tool I built and get started. Here's some backstory: I used to love Flickr as a place to store photos, and as a community for sharing and dis...
Though he could have gone a few additional miles here to create a full-on plugin, there’s a tremendous amount of awesome work here to help people download all of their Flickr content and put it into their own WordPress website to have and own it all on their own domain.
I hope that people will use his excellent instructions to test things out. Finding the small handful of potential bugs and troubleshooting them could help push this down the path to making it a more robust solution that could become a plugin.
And as a bonus for those who do use it, you might also consider taking a look at some of the IndieWeb related technology like Webmention and Brid.gy which can help you not only continue syndicating your photos into Flickr to interact there, but also get the comments on your content on Flickr to come back to your website as well. Then you can have the best of both worlds!