Infrastructure costs money. Communities need to remove bad actors. These are just facts of life.
Communities require continual investment. This is as true online, as it is for in-person communities, so it's important for people to donate when and if they can, if they find value in a community. The key thing is, a community needing to be invested in is very different from needing, or wanting, to turn a profit. In fact, community and profit-seeking are kind of mutually exclusive.
The profit motive inevitably strangles the community.