I’m not criticizing them or the approach. That’s what I would have done most likely. But the things you mentioned aren’t particular to stable diffusion, or even VAEs. Yes, the best way to learn is to be told or to build up applied/implemen6ation experience until you learn them directly. But almost any CV model will run into at least one of those issues, and I would expect someone with idk > 1y experience in applied work to know these things. Perhaps I am wrong to do that.