It is, but monthly subscriptions are too "sticky". There are creators that haven't released anything for several years, but they still earn thousands of dollars

It is, but monthly subscriptions are too "sticky". There are creators that haven't released anything for several years, but they still earn thousands of dollars from their patrons, because people don't really care about saving $5 a month. At the same time, people do care about spending an extra $5 on top of $50 they already spend on patronage, so new creators in the same field find it harder to amass a sustainable number of patrons.