"The Open Philanthropy Project is a collaboration between Good Ventures and GiveWell in which we identify outstanding giving opportunities, make grants, follow the results, and publish our findings. The Project is not, itself, an organization."

edit: I cannot reply to the below, so I will edit my comment.

I am aware that GiveWell does not invest money. Instead it provides impartial analysis of investment impact. My contention is that this was not impartial. Dustin can handle his own money, but:

People using GiveWell to decide their own investments should now think twice in my view. Which kind of defeats the whole point.