Not foreseeing the amount of sports betting that would take place, is kind of a failure of rationality in the first place, and I say this as someone who absolutely respects the community in general.
When there's a crisis, it's still worth checking in to see what the LessWrongers are saying about it, because it might be very useful, and it's pretty easy to tell: you just check whether it looks like they're doing science, or Rationalism™®, and only investigate further in the rare cases where it's the former.
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A weird synthesis of the goofy, the immature, the delusional, and the grandiose shot through with mental illness.
It's important to remember that for a brief time, people argued that gatekeeping was generally and usually a bad thing.