I just published to AO3. I put up about a dozen chapters because the format is better if you upload the story arcs together. No feedback yet, but my kid likes it, which is great

It’s much easier to write your own version of a copyrighted material than to creatively write on your own. My work is fanfiction based on someone else’s ideas. Yours is all you and I envy that.

It’s the OS license that’s the main problem.