What is being referred to is the meme known as Roko's Basilisk, which Eliezer threw a fit over and deleted from the site. If you google that phrase you can find discussions of it elsewhere. All of the following have been claimed about it:
Merely knowing what it is can expose you to a real possibility of a worse fate than you can possibly imagine.
No it won't.
Yes it will, but the fate is easily avoidable.
OMG WTF LOL!!1!l1l!one!!l!
Wait, that's it? Seriously?
I'm not exactly fit to throw stones on the topic of unreasonable fears, but you get worse than this from your average "fire and brimstone" preacher and even the people in the pews walk out at 11 yawning.
AI Box Experiment Update #3
Tuxedage (AI) vs Alexei (GK) - Gatekeeper Victory
Tuxedage (AI) vs Anonymous (GK) - Gatekeeper Victory
I have won a second game of AI box against a gatekeeper who wished to remain Anonymous.
This puts my AI Box Experiment record at 3 wins and 3 losses.