I don’t see any downsides or arbitrariness of this suggestion, I mean, there are some services I will use for one month, and I intend to use it for that month, but it happened before where I would forget to cancel it, and this has happened to other users too, by default, auto-renew should be off, I don’t really know any strong arguments that can go against this point, I mean, auto-renew can be useful, but there are many cases where it could be harmful and even though people do forget it, it might be a tiny bit deceptive in some cases.
Spirit airlines has an annual membership program for discounted rates. You cannot turn off auto renew without canceling entirely and they won’t give you the remainder of the year. Oh, and they wouldn’t let me erase my credit card info even after canceling.
Avoid spirit airlines.
Don’t think this would fly in Canada. (Sorry)