A small SaaS company, tardis.dev, was banned by Cloudflare after 4 years of being a paying customer, with their account restricted without warning due to high JSON data transfer. The company uses Cloudflare Workers, which have different terms, and had previously asked about the possibility of being restricted, but was told it would not happen. The restriction caused the company's website and APIs to go down, resulting in angry customers. The company is trying to resolve the issue with Cloudflare support.