Patreon charges a 5%-12% platform fee on top of any payment processing fee. They’re not footing the bill of 25c or whatever flat fee per transaction, as you see

Patreon charges a 5%-12% platform fee on top of any payment processing fee. They’re not footing the bill of 25c or whatever flat fee per transaction, as you seem to imply. They’re not spreading costs. Whether you’re donating $1000 or $1, Patreon is getting their 8% (or 5%, or 12%).