I've run into the same thing. Someone I'd been following launched a Patreon, and I really wanted to support them, but I'm uncomfortable about the monthly subscriptions. (One part of my thought process - I don't want to offend them if I unsubscribe/cancel at a later date, and maybe they're counting on that recurring money for their income.)
Fortunately, that person followed up by launching a Kindle book, and then a paid email series, so I've now sent them far more money than I would have as just a Patreon contributor (approx 3yrs worth so far). Maybe it's best if Patreon is just one of many revenue streams people offer.
As an artist supported by Patreon: we really don't give a damn about your particular contribution unless you are someone we have a personal interest in. Or if your contribution is notably higher than everyone else's. If you subscribe at $3 or whatever for a few months we're not really gonna notice you coming and going.
Fortunately, that person followed up by launching a Kindle book, and then a paid email series, so I've now sent them far more money than I would have as just a Patreon contributor (approx 3yrs worth so far). Maybe it's best if Patreon is just one of many revenue streams people offer.