"Metadata" as commonly used in this context would conceivably include the URL of a web request, right? So that would include all of your search history and all web pages you've ever visited, for instance.
Yes, we should say "records of who electronically contacted whom and what, including when, how and from where, including the search history and visited web pages" and never use "metadata" for that. It almost scary to me to type it in that exact form.
