Earlier quoted context omitted.
Their ToS forbids not just the crypto mining (that was extremely reasonable to ban ten years ago, but it's moot today) but also some arbitrary financial technologies they don't like. So beware of their ToS.
> also some arbitrary financial technologies they don't like Such as?
It is obviously a hostile language created by lawyers who did not spend much time researching the subject.
Of course it's unenforceable in practice and that is why a hefty chunk of Ethereum nodes are hosted on Hetzner for years and years with no problems.