Here's a poser that occurred to us over the summer, and one that we couldn't really come up with any satisfactory solution to. The people who work at the Singularity Institute have a high estimate of the probability that an Unfriendly AI will destroy the world. People who work for http://nuclearrisk.org/ have a very high estimate of the probability that a nuclear war will destroy the world (by their estimates, if you are American and under 40, then nuclear war is the single most likely way in which you might die next year).
It seems like there are good reasons to take these numbers seriously, because Eliezer is probably the world expert on AI risk, and Hellman is probably the world expert on nuclear risk. However, there's a problem - Eliezer is an expert on AI risk because he believes that AI risk is a bigger risk than nuclear war. Similarly, Hellman chose to study nuclear risks and not AI risk I because he had a higher than average estimate of the threat of nuclear war.
It seems like it might be a good idea to know what the probability of each of these risks is. Is there a sensible way for these people to correct for the fact that the people studying these risks are those that have high estimate of them in the first place?
One should read materials from the people in the organization from before it was formed and grant those extra credence depending on how much one suspects the organization has written its bottom line first.
Note however that that systematically fails to account for the selection bias whereby doom-mongering organisations arise from groups of individuals with high risk estimates.
In the case of Yudkowsky, he started out all: yay: Singularity - and was actively working on accelerating it:
This was written before he hit on the current doom-mongering scheme. According to your proposal, it appears that we should be assigning such writings extra credence - since they reflect the state of play before the financial motives crept in.