Christ, and to think that I used to actually like this shithole of a wiki.Cyantreuse made a brief return to Tumblr this morning, during which time he dropped a large post detailing the abusive and manipulative behavior that he believes he experienced from SCP staff. (https://archive.fo/nD9Pm)
Though Cyantreuse has brought up his dislike of SCP staff many times before, this is the most open he's ever been about their behavior on social media. The post also provides links to several other resources.
It appears that Cyan is making a new, independently-operated website for SCP fiction. Unlike the main SCP Wiki, this site is purely for written content and does not allow people to rate or comment on pages. So far, the only content on here are ports of Cyan's tale series featuring his character Agent Trauss. It doesn't seem like there's any way to join at the moment. I'll post archives of all the pages I could find below, in case this gets taken down:
Homepage: https://archive.fo/OTPU1
Information page: https://archive.md/7FJ7v (Google cache: https://archive.md/4Fzxa)
Cy's author page: https://archive.md/TWTHL (Google cache: https://archive.md/KhjEn)
Series pages: https://archive.md/596LJ, https://archive.md/Ozlnz
Sample tale: https://archive.md/Q5SgW
Moving on, he also linked to a Google Drive folder full of evidence of Roget (an SCP Wiki admin) and his girlfriend manipulating the former owner of the RPC Wiki for their own purposes. Contents will be attached to this post. (We also know, at the very least, that ProcyonLotor, Dr. Mann, and possibly Duckman/AdminBright were aware of this as well, and did nothing).
He also addresses the sex side of the community. There's a link to his Soundcloud page, where so far the only upload is a voice recording titled "Intro: On Abuse" (possibly part of a series) in which he talks about how he believes the SCP administration openly allows sexual abuse within their community. I'll attach a download of this too, and here's a warning that it's around 33 minutes long.
Lastly, he attempted to link to a letter that he sent SCP administration a few months ago, but he linked it incorrectly, and there's no way to access it without requesting permission by email. If he changes the settings, I'll update this post later.
Edit: I've finished with the audio recording. It's got some really useful information, but Cy's still jerking himself off over how no one will ever understand that he's the real victim, or something like that. Christ, being a victim of grooming does not totally absolve you of your actions.
Edit 2: Updated some info.
And if emotionally manipulating the RPC admin for shits and giggles is just surface level stuff, imagine what dirty secrets the staff is hiding even deeper.