When creating a BatchingSettings object using the builder, if a user doesn't explicitly call builder.setElementCountThreshold(), the builder uses the default elementCountThreshold of 1. That means that the default behavior of the BatchingSettings object is to not batch at all. I spent a good 30 minutes trying to figure out my application wasn't batching messages even when I was using a BatchingSettings object. Can the default value be something greater than 1, just so that when the user tries to batch something, it doesn't look like the library is broken?