[sheeeep86]

You could have the advantages of both worlds by having one json object per line. You could stream process, and you could structure more complex objects and have consistent escaping.

[gugagore]

https://jsonlines.org/

[nmz]

You could do that, you could also have a json that is not streamable. You can't guarantee how large a json object will be but you can guess that the csv will probable be.

[ledauphin]

and the "redundant" headers will get compressed away to nearly nothing over most transports.