Bitcoin round trip fees are too high, cash to BTC back to cash probably averages 10-15%, plus the volatility risk. Patreon is not cheap, probably averaging 8-10%, but it is cheaper and obviously much more convenient.
10-15%!? Even coinbase with it's high fees is %3 + $0.50 round trip, which is pretty much equivalent to paypal. I would also think a crypto solution would probably take barely anything in management fees, unlike kickstarter and patreon. If your smart about it, you can use limit orders on something like GDAX and make it %0-%0.5.
Despite all of that, I don't think you need crypto for this. Patreon dropping people out of distaste is giving money to competitors who don't care. What would stop that is credit card companies refusing processing to these companies.
And not very likely to get significantly cheaper than Patreon. Bitcoins etc still require a backbone of infrastructure to process payments through mining. Those people still need to be paid, and the computational overhead with bitcoins/alternatives is billions of times higher than raw financial transactions. The cost will never go to zero.
Even if it was as low as patreon dollars would be superior for 99% of people. When you need dinner on the table, dollars getting direct deposited into your account > worrying about bitcoin prices and selling coins. The only people who have any reason to switch are those who are producing content that is seen as intolerable, people trying to avoid taxes or the law, and people making moral stands.
