Yep it's a problem.

Sibling dearest and I were talking about exactly this maybe an hour or so ago (including discussing the blog post that I linked above, though I use the term loosely as it's mostly a selection of redacted screenies accusing this comic artist whose art and art style predates AI by a very long way and was one of many that the AI trained on accusing said comic artist of very obviously using AI).

I'm not sure if AI detecting AI is any better or worse than humans sometimes. Also if not you personally anyone that draws even vaguely similar to you probably had their art vacuumed up for training and if AI can reproduce this style (highly likely because it's nice and clean) then you are likely to be a false positive.

AI will generally (theoretically) just be following its parameters when it's flagging stuff. And some of them have been interesting as I remember running text from a post here through some anti-plagiarism things and it flagged as 100% plagiarism and gave me a link for what was supposed to be a possible source and there was nothing even remotely related between the two.

Humans you won't be able to tell anything to because half the time they know they're right so hard there is no room for facts or anyone else's opinion and you're absolutely lying, there is no other option.

I reckon if you feel like it would be a fun thing to do/that you'd like to try, just go ahead and see where you end up :)

Peakd also has a store thing too if that might be useful for you (I know nothing about it other than it exists).