Five Figure Fanwork Exchange

Hi, I'm not the same anonymous person you replied to above, but your answer to their question made me curious about something. Is there going to be any kind of rule about how different the two 5K stories need to be from each other? Because it would be awesome if my potential author made a good faith effort to do two different takes on the same prompt, but I would be really unhappy if they wrote one 5K story and then did a half-assed remix with only minor cosmetic changes.