Here is the blog entry of the Journalist Mike Kuketz, explaining in detail how he uncovered the fraud, unfortunately only in German. This includes samples of the questionable GET and POST Requests, as well as a link to a commit to the WOT sources on GitHub, which introduced the necessary changes ... https://www.kuketz-blog.de/wot-addon-wie-ein-browser-addon-s... The commit referenced in the blog: https://github.com/m…
And by the way, he also suggests in his blog post that Ghostery and Adblock Plus might as well sell browser histories as WOT does. There might be even more.
I think knowingly sharing your data (with a positive affirmation) is significantly different than having your data collected and sold without your knowledge
[2] https://www.ghostery.com/support/faq/ghostery-add-on/What-da...