I think once cryptocurrency prices reach steady state (a more reliable store of value), then it'll make more sense to be used as a donation vessel on something like Patreon. Also, the gateway from crypto to fiat needs to improve drastically for crypto to be a desirable modality of donation revenue for content creators. At the end of the day, especially for the creators who've devoted their lives to growing their channels, people value liquidity and spendability over all else and crypto isn't there quite yet. While I'm hopeful for blockchain based used cases to penetrate the donor market, it'll take some time. ;)