An Open-Source version of FurAffinity forked from Tanz on the Google Code project before it went extinct. It's still available on Google Code but can no longer be updated on their platform.
Because I can. And boredom. Nothing else, really. If you really wanna check it out, it's at https://heimkoma.com/openaffinity -- note, this may not even work. And I may nuke it from orbit at any given time.