As was pointed out here, though... by pricing at such a point (initially), they find people who do.

And maybe that's the intent.

If you're not Apple, where price insensitive customers beat down your door, then finding them is a non-trivial problem. And not just any customers, but ones who would be interested in your (I assume) follow-on product in a similar space.

If you're living in a Western country as a coder you can afford $90 a year for something that can save you more hours than that unless something is taking most of your money (say alimony or garnished wages from bankruptcy caused by our poor medical system). I prefer emacs and vs code to IDEA editors but that's just me. Even when I was at $50K a year I wouldn't have though twice about $90 for an editor (or other tool) if I thought it would save me time and cussing.

Plenty of successful products appeal to very few people.

I was just offering the way I would approach considering to buy something like this

Personally, I don’t think this tool would make me significantly more productive, but if it could truly save me a few hours a year maybe 120/yr isn’t that bad.