He haven't broken any rules.
It's up to every individual to choose what to do with their own money.
Take a look at
You must be registered to see the links
game, His game is full of stuff that he hasn't done himself.
Either he just bought the models or stealing other peoples work.
His game is been around for 7 years now and still missing 90% of the actual gameplay and he still have a patreon.
Atleast he doesn't have 4k pleges like he had once. Isctor could be like Yanderedev 2.0 if this goes on d: