` ::::::If you're going to be technical, Boyd never posted to ``Googlegroups.``  Google Groups did not exist at the time.  Boyd's posts were to rec.gambling.poker, which is currently archived by Google Groups, but is not Google Groups itself.  Reading WP:BLP, I'm not sure how Boyd's own Usenet posts can't be included.  It says: ``Never use self-published sources—including but not limited to books, zines, websites, blogs, and tweets—as sources of material about a living person, unless written or published by the subject,`` and these Usenet posts were written by Boyd.   `