Also, can you not "upgrade" but still run new models?
SD2 wasn’t “neutered”, the piece of it from OpenAI that knew a lot of artist names but wasn’t reproduceable was replaced with a new one from Stability that doesn’t. You can fine-tune anything you want back in.
The "in the style of Greg Rutkowski" prompts from SD1 though, IIRC, were thought to be proof it was reproducing the training set. But it actually only saw ~27 images of his, and the rest was residual biases from CLIP.