Thus the thing to do, for funsies, is to subscribe, and then cancel, and give the poor customer service person on the other end of the line, a piece of your mind, every time you cancel. Boycotts generally don't work. But the goal is to make a signal that gets noticed by the C-suite. Unfortunately, the routes I see are in the pocketbook, the customer service department, and via Twitter, if they do actually happen to be there. A sustained prolonged boycott would work, but most people don't care. Screaming at the customer support person is just shitty to a low level employee that doesn't have the ability to affect change so empathetically thats horrible to do to them, so that's a no go as well. But that is by design. Thus, one way is to overcome that and be horrible to the CSR. But that sucks.
Yay, American "capitalism".
Being horrible to the CSR will never be noticed by the C-suite.
If you think they give one flying fuck about what customers think I have news for you: the only thing that matters is what the board thinks and if revenue is rising but everyone hates the product/company they won’t even blink.