[This comment is a response to the original post, but seemed to fit here most.] I upvoted the OP for raising interesting questions that will arise often and deserve an accessible answer. If someone can maybe put out or point to a reading guide with references.

On the crackpot index the claim that everyone else got it wrong deserves to raise a red flag, but that does not mean it is wrong. There are way to many examples on that in the world. (To quote Eliezer:'yes, people really are that stupid') Read "The Checklist Manifesto" by Atul Gawande for a real life example that is ridiculously simple to understand. (Really read that. It is also entertaining!) Look at the history of science. Consider the treatment that Semmelweis got for suggesting that doctors wash their hands before operations. You find lots of samples were plain simple ideas where ridiculed. So yes it can happen that a whole profession goes blind on one spot and for every change there has to be someone trying it out in the first place. The degree on which research is not done well is subject to judgment . Now it might be helpful to start out with more applicable ideas, like improving the tool set for real life problems. You don't have to care about the singularity to care about other LW content like self-debiasing, or winning.

Regarding the donation aspect, it seems like rationalist are particularly bad at supporting their own causes. You might estimate how much effort you spend in checking out any charity you do support, and then try to not demand higher standards of this one.