Thanks for the work on this. It seems very valuable: I agree that they seem to be an awesome idea and like an individual donor should be able to improve their impact easily with a fund. Unless, that is, issues like the ones you highlight eat all the gain.
I imagine the data wasn’t available, but I thought I’d check: was there any more granular information on the funding history than just percentage of total donation that remains unallocated? Because that would seem to make a big difference: the more skewed towards the recent past donations are, the less discount rates would seem to be a problem