[bradleyjg]

All subscription contracts provide that they can be cancelled by either parties with reasonable notice. If that was not the case we would have open-ended contracts that can never be brought to an end, which would be obviously unfair (and in fact such contracts are deemed unfair in many jurisdictions).

That’s not the case, and it needn’t be the case. In common law jurisdictions courts rarely order specific performance. So for perpetual contracts, which do exist, a party would just need to pay expectation damages to the other party to end the contract.

[mytailorisrich]

That's rather nitpicking.

On the consumer side perpetual contracts are unfair, and subscription consumer contracts essentially always include termination clauses on both sides.

In the end this usually means having to give reasonable notice, which can also be an implied term.

Now, if you consider commercial contracts in general that's different.