What kind of hide-my-email providers give you unlimited aliases that can be created in bulk?

It’s definitely against the ToS for the ones I’ve used.

One could give the same argument for blocking Gmail. You can create Gmail accounts in bulk, you can’t resolve them to an identity, and you can’t compare them to determine if they’re the same person.

The difference is that you trust Gmail to enforce their ToS, do KYC and ban people abusing their service. Should you?