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You can just check your Apache/Nginx logs. No need for some elaborate system that gives info to third parties.

You put your contact details on the site so that people can voluntarily reach out to you if they like the content.

Are you seriously asking why e.g. a restaurant should provide a menu online?

You don't need analytics for that. A counter will do.

That's analytics...

In the sense that saying "leave me the fuck alone" to someone and punching them down and kicking them are both "aggresive"...

So, yeah, they can keep this "analytics".