Technically it's not a donation, it's a 0% interest loan that doesn't need to be repaid until 2068. And $50M was the initial amount, but it's up to ~$100M now.
To the recipient.. I don't know why you'd prefer it to a (stipulation-free) donation, but in general it's probably easier to get big loans than big donations.
With inflation $100M will probably buy an ice pop in 50 years.
If I had oodles of money I'd probably do this, "I'm just giving you this money now, but if you got bought up by someone without those same ideals they need to pay up.”
Given it’s the former WhatsApp CEO even more reason to be skeptical.
2068 is in 47 years. A long way away, yes, but still a big difference.