ganking is absolutely fine and the risk of getting ganked/retribution was (please note: past tense) one of the key thrills of playing on a pvp server
flying mounts have sucked any and all fun there was once to be had a long time ago in world pvp out of it.
To make matters worse, CRZ has made an already depressingly diminished experience ultimately meaningless. Getting ganked by or ganking a nameless random player you will in all likelihood never ever see again (and certainly not at max level when rivaries really flourish, since pandaria is CRZ-free territory [thank god]) has no meaning whatsoever.
They dont even acknowledge that 9 out of 10 PvP realms have incredibly lopsided faction imbalance. Because CRZ is such a great bandaid... yeah right. The only noticeable effect is extreme ganking around Dark Portal which, again, due to flying mounts is utterly meaningless and makes me depressed when thinking about classic world pvp...
While the ratio on my realm is not as horrible as it is on most PvP realms I still refrain from ganking obviously outmatched alliance players too much out of fear even more will transfer away or faction change. Not that there is any meaning or excitement left for open pvp in this game anyway