It's different on the apple store, where Apple forced providers to agree that a subscription could be unilaterally cancelled via the store. Ideally we would pass a law so that credit cancellation also cancels a contract as long as the minimum period is over. Not holding my breath though.
What companies do this in practice. I think I’ve “ghosted” 300 companies and never had a single even send a threatening letter, much less do anything. Usually I get an email of “error processing your card, please fix or we turn off.”
I can’t imagine it is ever economical to pursue in courts over an $11.99/month contract.
The exception is gyms that do seem to go to ends of the earth to collect.
I had a colleague who used to get monthly calls from a cable co. He was divorced from his wife, who had set up the cable contract, so they wouldn't let him cancel it but were still convinced that he was liable for the money because it was supplying his house.