I use Sublime and paid for it a few years ago. That said, I also use VS Code which I really like for certain things. I actually use both of them daily and simply get different utility from them. If Sublime went to subscription then I would make do with other products. VS Code has a robust plugin ecosystem and I see that growing in the near future. I honestly think Sublime will eventually end up as FOSS. Whether that is from a drop or increase in subscribers I don't know.