You make me wonder if the hate is partly due to XML being used in integration, and integration is difficult and problematic, and vulnerable to all kinds of comm

You make me wonder if the hate is partly due to XML being used in integration, and integration is difficult and problematic, and vulnerable to all kinds of communication problems. And if JSON tends to be used where integration isn't very challenging (eg. you control both ends, and the data is fairly regular and simple; or one end is entirely determined by the other); that is, where schemas aren't needed.