As a mod you have to delete harmful things. I think the spread of Roko's is entirely due to its own memetic strength as an idea, and the Streisand effect has very little to do with it past the first dozen people who saw it.
We also have done nothing to signal-boost the Zizians. :) If we can be accused of anything in this context, it's not kicking bad people out aggressively enough, which seems very different from fostering bad ideas. Zizianism is not a widespread ideology in rationalist circles, in fact it was confined to a very small circle right around Ziz themselves. It unfortunately is the case that we have a lot of psychologically vulnerable people and we don't always do the utmost we can to protect them, in large part because a lot of rationalists have trauma about being excluded from communities.
We also have done nothing to signal-boost the Zizians. :) If we can be accused of anything in this context, it's not kicking bad people out aggressively enough, which seems very different from fostering bad ideas. Zizianism is not a widespread ideology in rationalist circles, in fact it was confined to a very small circle right around Ziz themselves. It unfortunately is the case that we have a lot of psychologically vulnerable people and we don't always do the utmost we can to protect them, in large part because a lot of rationalists have trauma about being excluded from communities.