At one point, ran a blog known as 'The Hacker Webzine' and amongst his work includes unveiling information about a vulnerability in Firefox 2.0.0.12 mere hours after its release. Most recently has accused SoldierX of hacking and listing him in zf05.
Called RaT a freemason
http://rvdh.ath.cx/index.php
http://browsers.about.com/b/2008/02/12/did-mozilla-rush-the-latest-firef...