What is an instance_id and how does it relate to the anonymous data collection?

What is the instance_id in the great_expectations_config.html? Does it affect the anonymous data collection in any way?

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Great Expectations has a data_context_id and an instance_id. Think of this in terms of using Great Expectations with a team. Everyone on the team working on the same project would be using the same data_context_id, but each individual would have their own instance_id for their copy of Great Expectations.

When Great Expectations collects anonymous user statistics, it includes both the data_context_id and the instance_id. Both of these IDs are anonymous though so no identity information is collected.