I've donated to them monthly now for ... what? ... a decade?
It's fine by me. Someday they won't have any more money. And the $3 or $5/mo I give them staves off that future a bit, and maybe gives them the freedom to do more than their core mission. Heck, maybe even innovate.
Good. I'm glad they have oodles of money in the bank. Good people doing good work never have that luxury, and I'm all-in on a future where that is no longer the expected norm.