I was thinking that leveling a death knight on a PvP server is going to be a cruel experience. I can guarantee that there will be level 70ish people in PvP gear waiting patiently just outside the death knight starting area to ensure that the first few waves of death knights get repeatedly ganked and camped. From what I can understand of the ganking mentality this is too good of an opportunity to pass up – a fresh wave of characters 10 levels lower than you who are new to their abilities (particularly in PvP), who are focused on leveling as quickly as possible, and who will probably have to pass though a particular area. Ganking gold! (I’m glad I’ve moved to a PvE server.)
FOLLOWUP: Looks like I was right – I wouldn’t have expected the ganking to have started in Beta though.