Why you should know: the price hike of Xbox GamePass caused their unsubscribe page to crash. This could lead to someone putting it off and immediately forgetting, then getting charged for the next pass against their wishes. Cutting payment at the source will piss off Xbox and they’ll auto kick you off anyway
This is not advisable to do for any membership.
You don’t foresee that some companies could actually take you to court for not fulfilling your obligations to pay. And you won’t just have to pay for what you owe, but the legal fees too. Gee, who’s that calling you all the time? Must be the debt collectors because now you’ve been tossed to debt collection agencies who’ll hound you until they also decide to take you to court.
You should not be treating your bank as the middle-man for responsibilities you won’t handle.
Here’s the thing you should actually know: decide what the hell which subscription is worth getting into. Don’t try being cute by doing this stupid method.