I have just now heard that there's a genre of stories being published on Fimfiction.net called "LoHAV" or something. Which supposedly stands for "League of Humans Acting Villainously." Apparently these stories about humans in cosplay going to Equestria and becoming the character they're cosplaying as. Which is okay, I guess, but after reading a few of these stories I have to agree with the criticisms that these stories aren't about My Little Pony. It's been a consistent problem with the story approvers that people are publishing stories about becoming their cosplay of Optimus Prime or Darth Vader or whatever, and honestly that's just really stupid. This shouldn't be an issue, and I would've said something about it earlier if I'd been made aware of it.
If you guys want to publish stories like that, the upcoming expansion to Fimfiction to allow general stories will allow you to post those. Until that happens, though, I'm going to have to say that these stories are categorically banned, and no further stories in this genre will be allowed to be published.
Please direct any questions on this ban to the moderators. I'm very busy right now and will not be able to respond.