I agree that this would be the most likely course of action if the essay is a hoax, but I think it would still risk being harmful overall, since retractions generally don’t result in an appropriate corresponding decrease in confidence in the material that was originally presented. I’d expect Less Wrong members in general to be better at reducing their confidence in a retracted claim than most people, but better is not necessarily good enough.
I agree that this would be the most likely course of action if the essay is a hoax, but I think it would still risk being harmful overall, since retractions generally don’t result in an appropriate corresponding decrease in confidence in the material that was originally presented. I’d expect Less Wrong members in general to be better at reducing their confidence in a retracted claim than most people, but better is not necessarily good enough.