You do not want updates that solve bugs? Some support in case you have questions or problems? Maybe also some new features (usually the word changes and also your experience and expectations)?
But I also want the software I buy to keep working as well as they did the day I bought them. I don't expect the developer to fix all bugs forever without any additional payment, even less add features, but I'd rather not have a kill switch, which for a text editor is what subscriptions are.
Many software vendors (ex: Jetbrains) offer renewable permanent licences that pays for maintenance without the kill switch. Sublime Text, which is possibly 10x most direct competitor now has a permanent license with 3 years of updates, which can be considered a subscription (you have to pay every 3 years for updates), but if you stop, your software won't break.
I want these much less than I want the ability to run the software without the danger of a developer disabling access on a whim. Happened too many times already, including to me personally. A standard example: games.
Somehow software vendors were able to accomplish 2 things during the last 4 decades:
1. Ship software, including free updates for the current version to fix bugs, without any fees beyond the purchase price.
2. Become the richest companies in the world, by far, to the point it's not even close.
So the idea that they need subscriptions so they can 'afford' to fix bugs is ridiculous. Also, paying the subscription isn't a warranty, maybe they collect my money and don't fix my bugs.
They didn't become the richest companies in the world by selling software without a subscription, they did it by illegally suppressing competition without any repercussions (among other things)
Bugs should be solved because the author made mistakes in software that they sold, and are in the process of actively selling. Not because I have a subscription.
Features should be added as addons that I may or may not purchase.