I think mail chimp is still doing it. A couple months ago I subscribed to a newsletter, which uses links to articles as you show above. I started getting junk emails, lots of junk emails, really junky junk emails. Unsubscribed from the newsletter last week. Yesterday, I learned that this newsletter is sent out using Mail Chimp. Searched and came upon your excellent detective work. I had taken a screenshot when I unsubscribed, examined it, and the address was not the website I was unsubscribing from, but rather africauniteds.com (sorry no apparent way to upload a picture) Junk emails continue without respite.