I’m fine with trusting your judgement if I can verify what you decided. This provides a mechanism for the donators to express displeasure with your financial decisions.
But this has turned this entire fund into a black box. For all we know you could be giving money to charities run by your friends. Throwing money into a mystery black box is so far from the values of effective altruism.
How can you honestly tell people that the most effective way to donate their money is to give it to you and totally trust that you will do a good job with it.
This is extremely troubling. Why in the world would I want to donate to some mystery fund? How can we ensure the money isn’t going somewhere we find highly objectionable?