It seems like you are describing a difficult personal experience. I think the rationalist community and Scott Alexander are altruistic and virtuous, so it seems having been involved/going through the journey in the way I think you are describing would make anyone indignant.
I did not have the same experience with this incident but I have had beliefs and made many poor decisions I have regretted, in very different domains/places, almost certainly with much worse epistemics than you.
It seems like you are describing a difficult personal experience. I think the rationalist community and Scott Alexander are altruistic and virtuous, so it seems having been involved/going through the journey in the way I think you are describing would make anyone indignant.
I did not have the same experience with this incident but I have had beliefs and made many poor decisions I have regretted, in very different domains/places, almost certainly with much worse epistemics than you.