If your server is dead, then by all means join a new one, it has helped me enjoy wow again :)
Especially a pvp server :o
I had the opposite experience. <_< Transferred to a PvE server a few months ago (with a much better community, granted) and I'm enjoying it a lot more.
It's really nice seeing enemy players and not worrying if you're about to get murdered. That being said all of my mains are on PvP servers. --- Like I've said before, Allies are like sand people; they scare easily but they will be back in greater numbers. -Reddit