Could GiveWell create a cryptocurrency to raise a lot of money?

No problem. I thought maybe if GiveWell was exceedingly straightforward and included something in their page about the crypto saying something like "Let us be very clear, this is a speculative investment with zero intrinsic investment value. More people will lose money than will gain money by investing in this coin. We advise you not to invest in it. However, if people are going to invest in speculative coins anyways, at least this one will save thousands of lives." then it might be reasonable, but I understand if people are of the opinion that it has too many reputation downsides/risks for GiveWell.