Cmon dudes its not impossible to have fun as a bdk in Cata.
Sure, ya dont make any dmg (with some luck u do but thats not often!) but ya survive in random BG the most encounters of stupid players. EVEN FROST MAGE!
So if ya do random BG (I gave it a try, time ago) its perfectly ok to roll some bdk, but if there is some group that plays just a little brain using together, its a pain in the ***!
I personly enjoy bdk in pvp-NO ARENA-just random bg. Its fuggin fun.. so what ? blame me for having fun on a game! -.-
And yes, Im not a good pvp player nor pve ;) but that doesnt mean I have no fun playing dad game :)