He is ignoring the haters. He continued despite their comments. He is mindful that the haters exist (which you have to be, in order to ignore them), but is ignoring them with respect to the advice they offer.
The haters were also wrong. They completely misunderstood the needs of the target audience for JSON5. They forgot the world is a messy place, no matter how clean and clear the JSON spec may be, the input from random users may well be messy...
I'm guessing even you simplify your life by using autocorrect and spell check from time to time. Autocorrect has its issues too, it probably makes us lazy and sloppy, but on the whole, it improves the input experience for a lot of users, so on balance, people choose to keep it around.
I don't use autocorrect, I find it does more harm than good. I do use a spellcheck to highlight "errors", but it's then up to me what action to take (and often the answer is that it was't an error at all).
The haters were also wrong. They completely misunderstood the needs of the target audience for JSON5. They forgot the world is a messy place, no matter how clean and clear the JSON spec may be, the input from random users may well be messy...
I'm guessing even you simplify your life by using autocorrect and spell check from time to time. Autocorrect has its issues too, it probably makes us lazy and sloppy, but on the whole, it improves the input experience for a lot of users, so on balance, people choose to keep it around.