This time last year, the ratio for BTC:ETH:XMR:ZEC donations via donate page addresses are around 40:20:20:1. We received more donations via Monero than Bitcoin and nearly all of the ETH came from a single, gigantic donation enough to hire a full time developer. Outside of Lightning (not official) then Monero is the only consistent, reliable flow of small crypto donations. ETH gets some as well but not as much.