The point of my comment was "this is not good general advice". The point of your comment seems to be "it can be good advice in some cases", which makes no sense to me. Obviously it can be good advice in that exact case where it makes sense, but it's not good general advice.
I'd argue it's good enough general advice and would apply to most online subscriptions as they typically have no minimum commitment. The ones with a minimum commitment would be the outliers and would require special treatment.
