Even if the content creators are taking advantage of their patrons, we shouldn't be angry with them, its just human nature to do so. Honestly most people complaining here would probably do the same, but I digresss.
We should be angry with whovever is still supporting them. As an analogy, its the same with microtransactions within mainstream video games. The people constantly overdoing it, are fugging us all, making this type of business practice acceptable/profitable. You can say whoever is supporting them, that its their right. Perhaps, but to be honest they fug us all, not just with this game but with all games to come.
Direct your hatred where it belongs, the consumer. He has the power.