[nullc]

Plenty do, https://www.eff.org/pages/other-ways-give-and-donor-support

All charities do if you open a Fidelity Charitable account and fund it with Bitcoin. :)

In the US it is tax adventitious to donate appreciated assets, including Bitcoin. (or even especially bitcoin as few other assets have appreciated as much)

It's often not highly promoted-- usually posed on an 'other ways to give' catch-all as it appears to have a slightly negative effect on conversion rates (I've heard there is some evidence that accepting bitcoin sends prospective donors off on a rabbit hole of learning about Bitcoin).