I’m kinda playing it by ear at the moment. I’m kind of limiting the number of people to a prompt to two because that’s pretty typical of challenges and I’m not sure what the interest level will wind up being. I don’t mind seeing the same prompt written with different ships/genres/by different authors. I think it’s kinda fun. I haven’t run into that issue yet, though.
There hasn’t been a ton of interest in it yet but I wouldn’t have a problem if you or anyone else did two fics, just as long as whoever does want to do two finishes and posts one prompt before trying telling me they want another one.
And, if by some strange miracle I wound up with 40 people doing the challenge with all the prompts claimed twice and more people who want to do the challenge, I’ll just let them pick whatever they want. It’s not a competition, really. It’s a celebration of fic.
Sorry if my word choice was confusing. I hope that answers your question.