https://www.letsbeef.com/forums/member.php?u=20
V is a former admin and is the guy whose voice you hear in this video:
https://www.letsbeef.com/video/lb-final.html
When LB started, X's role was more of the front-end developer/graphic design guy, Pseudo Nim's role was more of the back-end developer guy, and V was more of the business man and took care of the business/legal aspect of things.
To my knowledge, he was never really involved as a day to day site admin type of person. He left and sold his share of the site a long time ago (around 2010?) to X and Pseudo Nim, but still continued to work with X on other sites and business ventures, including Rocbattle.
I've met both X and Pseudo Nim in person (separately) but I never met V.