Tim Hua comments on GiveWell may have made 1 billion dollars of harmful grants, and Ambitious Impact incubated 8 harmful organisations via increasing factory-farming?

[Tim Hua]

I endorse moral reasoning where you start from a conclusion, and then work backwards to discover general principals.

I think this community is much more at risk of being led astray by convincing-sounding but actually incorrect arguments, as opposed to having starting assumptions that vastly limit their ability to do good (I will probably give the opposite advice to most other people).

See e.g., Epistemic learned helplessness, Memetic immune system.