I don't get it though. Why not just revise the billing so that if users are hitting the servers above some defined frequency, they get charged more?

I'm tired of this startup-adjacent mindset that promotes endless adversarial scamming. I absolutely think people should be able to run OpenClaw or whatever harnesses they want, but I also think they should pay in some proportion to usage rather than trying to exploit an all-you-can-eat buffet offer to stock their own catering business.