Meanwhile in January they said they had taken in a total of $3.5 billion in creator lifetime funding. At lets say 8% average cut that means they've made a total of $280M in their whole history, although earlier accounts got grandfathered at the original 5% rate I think. We'll go with 8% to be generous. Even at 12% that means total lifetime income for patreon is $420M, around the same as their VC funding.
Then they have to pay all the processing fees, their own development and operational staff (~300 employees in 4 offices), etc. Then they have to actually make money as profit to satisfy investors.
VC funding killed patreon.