@pikesley yes, it's also known as the "training data harvester" dark pattern.
Unethical Software Engineering
Unethical Software Engineering exposes how to manipulate, exploit, and profit at users' expense. From covert email trackers and fake reviewers to cybersquatters and bot pretenders, this eye-opening book collects 22 dark patterns eroding accountability, trust, truth, transparency and privacy.
(leanpub.com)