I'm observing that most of them considers themselves an immoral hypocrite. Exceptions apply to people medically unsuitable for kidney donation.
The same observation applies to most consequentialists with two typical lungs, and to those who have not agreed to donate their organs postmortem.
From a strict consequentialist viewpoint, it is a moral imperative to have kidneys forcibly harvested (or harvested under threat of imprisonment) from people who are suitable and provided to people without functioning kidneys. (Assuming that the harm of having a kidney forcibly harvested, or harvested under the threat of imprisonment, isn't on the same scale as the benefit of having a functional kidney.)
The fact that the conclusions which are necessarily drawn from the premises of consequentialism are absurd is what discredits consequentialism as the primary driver of moral decisions. Anyone who considers themselves moral, but has all of their original organs in good working order, agrees that the primary driver of morality is something other than general consequentialism.
There recently was a post on LW (to which I'll provide a link as soon as I get behind a 'proper' computer rather than a smartphone) making the point that the expected number of lives you save is much higher if you donate $400 than if you donate a kidney, so if you're indifferent between losing $400 and losing a kidney (and given what that post said about the inconvenience of the surgery for kidney explantation, I'd say $400 is even a conservative estimate) you'd better donate the former. (FWIW, I have agreed to donate my organs after death -- more precisely, it's opt-out in my country, but I know how to opt out and haven't done so.)
A Ph.D student in neuroscience shot at least 50 people at a showing of the new Batman movie. He also appears to have released some kind of gas from a canister. Because of his educational background this person almost certainly knows a lot about molecular biology. How long will it be (if ever) before a typical bio-science Ph.D will have the capacity to kill, say,a million people?
Edit: I'm not claiming that this event should cause a fully informed person to update on anything. Rather I was hoping that readers of this blog with strong life-science backgrounds could provide information that would help me and other interested readers assess the probability of future risks. Since this blog often deals with catastrophic risks and the social harms of irrationality and given that the events I described will likely dominate the U.S. news media for a few days I thought my question worth asking. Given the post's Karma rating (currently -4), however, I will update my beliefs about what constitutes an appropriate discussion post.