>Other than the person who came up with it, I've not even heard of such people.
Yudkowsky took it seriously enough to ban it from discussion on LessWrong as it was an "information hazard," so I think you might be a bit naive about how seriously many rationalists took/take it.
“an incredibly costly way for me to learn that deleting a stupid idea is treated by people as if you had literally said out loud that you believe it, but Roko being right was never something I endorsed, nor stated.” - Yudkowsky
