I've had the same though as Karpathy over the past couple of months/years. I don't think it's good, exciting, or something to celebrate, but I also have no idea how to prevent it.
I would read his "Best to be good." as a warning or reminder that everything you do or say online will be collected and analyzed by an "intelligence". You can't count on hiding amongst the mass of online noise. Imagine if someone were to collect everything you've written or uploaded to the internet and compiled it into a long document. What sort of story would that tell about who you are? What would a clever person (or LLM) be able to do with that document?
If you have any ideas on how to stop everyone from building the torment nexus, I am willing to listen.