Well, in my country it's actually against the consumers protection code to bill stuff without you accepting it, because they state that your inertia of not canceling is not the same as you agreeing to something, so it would be considered scammy here.
The whole point is that I didn't choose it, I merely forgot about it, it is way different.
And I'm sure is not just me. Lots of people probably probably forgets that stuff, even more so if they support multiple different projects.
Not necessarily about this dev, but if someone makes some page asking for donations to help him make a game but he almost don't work on it because they expect people to keep sending money either way, it is scammy, regardless if people choose to send the money on their own volition.
Just because something isn't outright illegal or a proper scam scheme, doesn't mean it isn't scammy behaviour.
You seem to be confusing a Patron with a customer. Main difference, a patron is not purchasing a product, they are choosing to pay to support an artist.
There is no contractual agreement for a product to be delivered for the money a patron chooses to pay.
Whereas a customer does have said contractual agreement.
As we are talking about patrons, not customers, consumer law is utterly irrelevant here.
Whatever laws exist in your country, they still do not classify
you forgetting what you're doing with
your own money as you being scammed. It's entirely on you that you continued paying a monthly fee for something you had no use or want for.
So it's indisputably your own fault that any money continued to go out from your bank account, no-one else's.
You have not been scammed by anyone. You simply forgot to cancel and therefore were obligated to pay.
As I said in my previous post: Only one person is accountable & responsible for your own actions & choices & that's you.
To claim you've been scammed simply because you forgot (chose by negligence) to cancel your payment would be ridiculously & laughably irresponsible.