Having a QuickSurvey is awesome.
Collecting answers is awesome.
But it would be more awesome if the Analytics team can relate these answers to the data being collected elsewhere.
What is not sessionId ?
It is not the user name or any private information.
What is sessionId ?
The sessionId is a random id generated in some location, to mark that some events belong to the same user. It allows single events to be grouped in order to represent an actual user experience.
What is the difference?
The goal is not to identify a user, the goal is to relate an answer to other events, anonymously.