Doesn't look like it, but perhaps a closer analysis would show some. One thing it shows for sure is a change, early on, in GMail's algorithm for deleting old ma

Doesn't look like it, but perhaps a closer analysis would show some. One thing it shows for sure is a change, early on, in GMail's algorithm for deleting old mails left in the Spam folder - that's where it goes from jagged to smoother. And it confirms the article's "spam at its lowest" story.