The tracker plugin logs the movements of users on your website.
At this time, this is primarily intended for developers to know what a user was doing before a crash or other malfunction. In many cases, users do not know how to express what they were doing on a website in terms that are generally technical enough for a developer to unstand what could have gone wrong.
The tracking data can also be used for marketing research to see how your users are using your website. The same way as other external services offer. In that case, it may help you better tweak your website effectively.
Later we will also allow for end users to get out of this tracking. However, it will be rather complicated so it is not yet an option.