To all the people saying they like CRZ. Tell me
ONE positive thing besides seeing more players around you (Hostile or friendly).
Because seeing more players around you has no positive effect on your leveling experience
what so ever.
If WoW was designed like say Guild Wars2, where there is no "tag system" and personal nodes, then CRZ would be fantastic. Nothing but dungeons and raids encourages co-operation in the wow and the open world. In fact, it actually discourages it.
It's an old and out-dated design philosopy, and CRZ is enhancing that (negatively). One of them has to change in some manner.
I created a thread myself regarding this some time ago and added my suggestions to changing the CRZ feature.
Link:
http://eu.battle.net/wow/en/forum/topic/5848177615