I've totally mislaid your latest e-mail, so I just wanted to thank you here for letting me know about the updates.
"poisontaster made it clear that she felt I should have stopped writing non-RPS fanfic in the Keptverse at the point where she said she wanted Keptverse fic to be RPS-only"
Was this in private correspondence, or in a recent post? Because I read her official policy at the time it was first posted, and I took it to mean (1) she didn't want to read Keptverse FPS, (2) she didn't want it posted at her comm, and (3) she supported the right of authors to write whatever they wanted.
I've struggled with the whole issue of whether to write litfic when the canon author is against fanfic. It's an even more difficult situation when the author is in the same community as oneself. This is one of the main reasons I stopped writing fanfic - because I didn't want to have to deal with these types of issues.
Dusk (who now gets to deal with the "am I borrowing too many fanfic tropes in my originalfic" issue)