They confirmed in the recent live letter Q&A that the vanity system won't even be allowed in PvP. They are basically stripping the players of any identity in PvP so feelings won't get hurt and bad players that pass off their inability to identify an opponent's class without an exact gear set as a "strategy" can be catered to. Its really rather depressing.
Personally this "Fresh Meat" thing sounds like something straight out of a 90s self esteem seminar to me. What's the worse that could happen if I get harassed by another player over a PvP match, aside from finally having a non-RMT related use for my Black List? That doesn't really bother me.
It should have been optional: let those with thinner skin be anonymous. I'd rather wear my name proud both in times of triumph and suckage.