Rebuttal to “How not to design a wire protocol” by designer of said protocol

Discussion of the “How not to design a wire protocol” post:

https://news.ycombinator.com/item?id=19312643

I don’t care how many protocols you think you have designed, or how many years have you worked in your field. If you can’t see how `{n: 1.2}` and `{n:1.23}` in JSON have a one-byte difference while still giving essentially same data, you have been wasting your time.