Personally I am a fan of this only because Kickstarter is a PBC. The most fundamental problem with Patreon is that it is a proprietary web service operated by a for profit company that now controls the incomes of thousands, ranging from hobbyist artists to major productions like Crash Course. It is like everything that is wrong with Facebook (the lock in from networking effects to a closed ecosystem) but made even wo…
A PBC just means they have some value that they will not sacrifice for profit. It doesn't mean they aren't for profit, and it doesn't mean they are democratic or anything. It's still a good thing. Not being a PBC is basically unethical always (there's NO ethical excuse for ANY for-profit to NOT be a PBC). But it's a low standard, not comparable to being a co-op or non-profit.
Also, even with Patreon being not a PBC, it's horrendous to compare them to Facebook. Facebook is an evil corporation that spends tons of resources promoting surveillance, advertising, and manipulation (and gaining power to dramatically influence politics etc). Facebook is exploitive and actively malicious. For all the real complaints about Patreon, they are doing stuff that is largely positive at least and is in direct opposition to the surveillance-capitalism of Facebook. There is NO COMPARISON. Facebook is plainly awful. Patreon is a good concept run by good people with some real problems that make it worth looking at the competition.