I switched back to Flickr when SmugMug bought them and 500px killed their API. The switch was a little harder to accomplish because I was planning to use the API to grab the originals I'd pushed to 500px and since archived, but I'm glad for it now. I guess this was the push I needed to move off the platform altogether.
One of the things I prioritise when picking a platform is answering the question "how easy is it to leave?". Flickr still seems pretty easy to leave if it comes to it.
I had deleted my Flickr account with my Yahoo account deletion as there was no way I could keep Flickr without Yahoo. When SmugMug bought Flickr I wanted to sign up and try it again. But I see that the sign up is still via Yahoo accounts. I guess it will take some more time.
Yeah, I've signed up with an account that's separated from my regular online identity. Hopefully, that gets sorted; if not, it's all at arm's length anyway. I should preferably get around to hosting this stuff personally, and federating to Flickr/wherever somehow.
One of the things I prioritise when picking a platform is answering the question "how easy is it to leave?". Flickr still seems pretty easy to leave if it comes to it.