I have the same question. What % of the final piece makes the tag mandatory? corrections? tracing? getting ideas? what about people who trained SD on their own art and made their own Checkpoint/LoRA? What if they used character reference of their OC (to which they technically hold the rights to) in Midjourney?
And for text and code it’s even harder, I’m ESL and I use ChatGPT extensively to proofread and fix my spelling and grammar errors, do I have to disclose that? Would people be happier with broken and mispelled English in the product?
So many questions that go unanswered.