These calls for someone to do something to stop recursive self-improvement are getting closer and closer to inciting violence. The community is well-aware of gwern’s ill-advised essay “Slowing Moore’s Law.” [0]
I think there are some unstable Rationalists out there that would take this seriously. Of course the Zizians [1] always come up but they’re an outlier.
[0] https://gwern.net/slowing-moores-law#state-actors-why-not-te...
[1] https://en.wikipedia.org/wiki/Zizians