Last time i checked... PvP is meant to be a challenge. We all know their are problems at the moment, but to disable vanity in PvP is pretty stupid and would just make it easier to know who is what class.
If you want to know a bit bout everyone, look around; the people that PvP are pretty much the same and you get to know everyone after a while, i've never been in any PvP match with you nor have I seen you in TA..
Remember the element of surprise is your best friend also, you could vanity up.. it's not a one way system, if you choose not to wear vanity then that's your choice.
EDIT: what's stopping say a ranger wearing mage or melee armour, ok they might not get the bonuses they need and will be disadvantaged.. but isn't this the same as "covering up with vanity" your class by wearing the incorrect armour?
Edited by luke94, 03 April 2015 - 07:51.