(Because of a hidden clause in the ToS? Can you hide "we'll install ransomware on your PC" in a software ToS and enforce that, too? What's the very fine distinction between "we'll remotely disable your printer until you pay for exclusive, cryptographically-signed ink", and "we'll remotely encrypt your files and demand payments for the key?")

(It's not a particularly new idea, to extort someone under the pretense of selling them a useful service (exclusive ink). That's just "protection racket" — I think?)