Sidenote, but what's with the ref=mdubakov.me query parameter attached to every link? Are there benefits of this over the "Referer" HTTP header other than tryin

Sidenote, but what's with the ref=mdubakov.me query parameter attached to every link? Are there benefits of this over the "Referer" HTTP header other than trying to skirt around my configuration choice not to share my browsing history?