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> trailing commas, forcing double-quote for keys etc

How do these things matter in any use case where a binary protocol might be a viable alternative? These specific issues are problems for human-readability and -writability, right? But if msgpack was a viable technology for a particular use case, those concerns must already not exist.

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I think this is the point-when one wanted “easy” parsing and readability for humans, they abandoned binary protocols for JSON; now, people who are finding some performance issue they don’t like are trying to start over and re-learn all the past lessons of why and how binary protocols were used in the first place.

The cost will be high, just like the cost for having to relearn CS basics for non-trivial JS use was/is.

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