Well, I assume they had other concerns, too. For example, it adds a bunch of complexity for reformatting a JSON from single-line to pretty-print, if comments can appear in there. I'm certainly not saying that I'm always best friends with the decision to remove comments, just that I can somewhat understand it.

[–] firelizzard@programming.dev 1 points 2 days ago

Their stated justification is that people would abuse comments, using them to carry semantic or syntactic information. That’s a shit justification IMO.

As far as the additional complexity that comments bring, I understand that from a technical perspective but from an engineering-for-real-humans-in-the-real-world perspective that’s the kind of thing you just have to deal with if you want to design a good format.