CRZ- waste of development time to bring little gain to the game. Running into players I have to realid to play with again and can do little to nothing with at end game. I love meeting new people I can't play with again, its sooo useful. Also, excessive competition for items, spawns, etc. Never has this many people been in any of these zones even during their appropriate expansion, sans maybe right at launch. Claiming that CRZ makes it more like an MMO is a lie, those other people from different realms might as well be NPC killing quest and rare mobs. CRZ brings little to no benefit to the game compared to the pain in the ass it has brought along. You want people in the world, join a high population server, don't bring the high population server to every realm in the battle group.
As for ganking, don't roll pvp. Those folks I have less sympathy for, because I mean its a pvp server, and you'll always get camped at some point by a max level guy...its pvp. Its about big dicks and dominance and alpha mentality...that usually means killing the weaker instead of challenging yourself.