I'm fairly certain that most of the people calling for the change are just disillusioned lowbies who got camped by some asshat level 70 in Stranglethorn for 45 minutes.
Leveling is such a short part of the game, even on a x1 server like this. Your ganking woes should also be temporary - I care more about the gameplay at level cap than I do about your struggles with leveling.
If you are still getting killed all the time while at level cap just trying to do dailies or farm, then you are doing something wrong. You must have ticked someone off or are just very unlucky if this keeps happening to you. I'd say 90% of the time when I encounter opposite faction at level cap, we just pretend like each other don't exist to avoid conflict/slowing questing down for both of us.
--+-~* *~-+ +-~* *~-+ +-~* *~-+ +-~* *~-+ +-~* *~-+ +-~* *~-+ +-~* *~-+ +-~* *~-+ +-~* *~-+ +-~* *~-+--
The expressing of opinions about flag/unflag option(s) isn't solely about leveling. Assuming and or trying to make it seem like it is (about leveling) therefore funneling it into "temporary" status to unjustly berate it's significance is inconsiderate. Suggesting that players logout, move to another area, etc. are selfish suggestions as well, it's kind of like stating a person should just go to another gas station if all the pumps are occupied even if people are at them loitering (not getting gas, in other words preventing others from doing something they need/want to do) instead of asking can someone one move. Some people prefer to be able to exist an act in the in-game open world without being forced into PvP if someone chooses to attack them. PvP inconveniences by opposite faction players exists at ALL levels, it isn't limited to any particular range. Some players attack others without being provoked. The amount of PvP inconveniences that happen to individuals matters not because the fact of the matter is it STILL happens and "some" players don't like it (and I don't think that it is a small portion of players). Do all realms here need to be switched to "normal", not at all. Would it considerably be a productive move to allow flag/unflag options, of course, why, because the WoW PvE player base is quite large and for the most part are left out when it comes to private servers/realms and can either subject themselves to the mercy of other players or not play.
But let's differentiate one thing here, PvE is NOT just raids/dungeons. Killing mobs outside of instances, clearing mobs to gather mats, challenging higher level mobs, etc. are ALL PvE. The thing about servers/realms striving to be "Blizz-like" is that they OFTEN leave out the "Blizz-like" feature of players being able to flag/unflag their characters. Flag/unflag options WILL draw out players seeking an un-inconvenienced (for the most part) PvE experience, PvP seeking players can flag but what WILL change is PvE experience seeking players will be satisfied (for the most part?) and balance will come to the force (LoL). Warmame is a great server, can be even better and stand apart more from the others by providing flag/unflag options, whether they be available with in-game currency or real currency. I'm willing to bet that players pay or at least consider paying for the option. Even if something like that isn't foreseeable, players still have the right to object and express legitimate concerns about a "Blizz-like" PvE experience.