Many providers have specific clauses for this. Ever since crypto mining became a thing providers have included in general terms you can’t over use the service. And often specifically against using it for crypto mining.

Providers will normally warn users and only kick them off when no explanation is forthcoming.

Usually this applies to shared services, like a VPS. You pay a lower price because you share hardware. But that only works if the hardware is shared fairly. If another user hogs all the resources, the service is no good for anyone. But it can also apply to seemingly dedicated services, like your own server for example. In that case the server is free to be used for whatever, but things like cooling and power are still shared. A regular dedicated server service will be based on typical use and can kick users out who require too much cooling or power. In cases where the resources are legitimately required, they will offer contracts that allow you to use all of the resources all of the time. But in turn you will have to pay a premium for something like that.

On the surface it may seem like a bit of bullshit, but that’s often what allows prices to be as low as they are. So I’m fine with it, as long as it’s made clear beforehand (which in my experience it is)