Thank you so much for helping out with the wiki. The moderators including me are not as active on the wiki and you have been providing new content which I really appreciate. Additionally, you have done research into things that were unbeknownst to me. However, I had to remove some of your changes.
Regarding Jeff the Killer, I removed the note at the beginning just so it wouldn't ruin the immersion of the story but you are right Sesseur did not write the most famous version (his version can be found on the wiki though), also, he did not create image, the original photoshopped image was created by 4chan users who where bullying a woman named Katy Robinson (who eventually committed suicide unfortunately). And the photoshopped image was changed to a more creeper version resulting in people writing creepypastas about it and resuting in Jeff the Killer we all know today. Perhaps, we could put a note in the comments explaining Sesseur did not write that version.
As for the Russian Sleep Experiment I looked into it and it is still not entirely clear who wrote it. Many people claim Orange Soda is a tagline to the story and the name of the experiment done in it (Project Orange Soda). Other people claim that Orange Soda is a username of the author but it is very unclear who is right. Additionally, there is a woman named Holly Ice who claims to have wrote it and published a graphic novel centered around it but she doesn't have a way to prove it. So it still remains a mystery.
Thank you for all help on the wiki and keep up the good work. If you have more time I would encourage you to write a creepypasta for the original category on wiki but it is entirely up to you. I myself, would like to eventualy write a creepypasta but I struggle with writing. Have a nice day!