Take this short and sweet video, for example - his first match of the three in which he competed. Never did Tarsis look remotely fazed by his opponent. We attribute that entirely to the beard. No one else in the BJJ game has successfully and consistently sported one as well as Tarsis. If I were to analyze this match, I'd first applaud the beard for leading Tarsis to victory. His grappling isn't entirely bad either.
So, sit back, throw your razor away and enjoy some great BJJ (rhyme intended).