>
many customers of those continue to pay knowingly and willingly and appreciate the convenienceYes, I fully agree.
> Many subscription models have nothing to do with tricking people
I don't agree with this, at least for auto-renewing subscriptions; that's my point. Every piece of software sold on auto-renewing subscription has some significant number of subscribers (as a percentage of its total number of them) that don't actually want it.
That is true regardless of what the publisher intends or wants.
Obviously, the exact percentage will vary a great deal, depending on the product.
Water is an example of something where that percentage would be low — presumably, almost everybody wants their water to stay on.
Netflix, not so much; I myself once paid for Netflix for months, perhaps years, without using it once, and without wanting to keep it on "just in case". I was just too busy to cancel it the few times I thought of it (until I finally did).
Netflix is not on the sleazier side of the spectrum, though; it's quite easy to cancel.
There are, however, a lot more disgusting sleazy fuckers out there like the Wall Street Journal, MyFico.com, and Comcast, than there are Netflixes.
P.S.
As a bonus, here's my Second Law of Subscriptiodynamics:
The total difficulty in cancelling an isolated auto-renewing subscription always increases over time.