The downside is that War Mode will make you vulnerable to other players, which means you might be killed more often. Whether it’s worthwhile will depend on the zones you’re visiting and how active the other faction is on your server cluster. Heavily populated realms usually mean more players on both sides, and more conflict, but on quieter realms, you may rarely run across an enemy.
Heirlooms are special pieces of armor that level up with your character, so they have stats that are always respectable for your character’s level (up to level 110). Heirlooms that fit the head, shoulder, chest, legs, and back armor slot offer an experience bonus. The total bonus is 45 percent if you have them all. It’s also possible to acquire a ring that adds another 5 percent, but you must win a fishing contest acquire it, and that can take some time.
Yes, you will be missing out on lore and the experience of seeing the world if you only do dungeons. Try to enjoy the questing and leveling experience while you can. Although, if you do decide to skip questing you won't miss it: you can always go back and complete low level quests when you reach level cap. I did exactly that to complete my Loremaster achievement.
J'utilise pas d'addon , pas besoin de savoir combien de dégats je fais si je vois mon adversaire mort , je traque les mobs rare avec seulement mon instinct , une bonne carte et une paire de jambes pour courir et laisser les autres faire le sale boulot a ma place (technique très utilisé a mop pour les world boss avec leurs cris qu'ont entend à100km a la ronde) , je fouille mes sacs comme un aventurier en regardant un par un chaque sac , je regarde pas les récompenses des quètes ou des expéditions , je le fait et seul les remerciements me sont suffisants "Une tortue a atteint l'océan !"
You could and it does make it even simpler (one button does it all) but I recommend against it. You would have to trust the undercut value. Because it also does a scan for the item when you alt click you can see that quite often there will be someone artificially lowering the item price in hopes to drop the price and buy it cheaper. Say some herb usually sells in stacks of 20 but the price for a single unit is 40g, which can go unnoticed (if no add-ons you'll only see the full price of the stack, not by unit) . Someone can easily pick one unit of that herb and post it at 20g or less.