There is always a schema. True, json has no formal explicit schema attached to the data. However, there is still the ad-hoc informal schema that's defined by

There is always a schema. True, json has no formal explicit schema attached to the data. However, there is still the ad-hoc informal schema that's defined by what the code interacting with the data does. Because this tends to be poorly specified and hard to get at, it's rather annoying to work with.