Just remind me on this - if an instance like lemmy.ml has defederated yiffit, and I create an account on yiffit, would I still be able to see/interact with posts from on lemmy.ml communities? Or does it affect communication both ways?

Ah thanks for confirming that the upload issue is more widespread. I still may consider migrating anyway, as the owner of my current instance has gone awol, which doesn't bode well...