The vanilla WoW Horde leveling guide you see on this site was originally made back in 2006 by Joana (AKA Mancow, or FuriousPaul).  The guides have been tweaked many times over the years to make things "faster".  The leveling guides were made because of all the messages I got from people asking me how I was able to level up so quickly on new realms.  I was first to level 60 on 7 different realms (3 with Mancow and 4 with Joana), even winning Blizzard's "First to Level 50" contest they held back in 2006.
You should equip new quest rewards when their item level starts beating out your previous set of gear. If you are currently wearing Tier 21 gear, it is best to let the quest rewards significantly beat your existing item level before using them. While a Tier bonus is worth a fair chunk of damage, the stats will quickly fall behind. Azerite gear additionally is another 1-3% per bonus, on top of raw stats.

Mar 15, 2017 RAF & Recruitment Does NOT Belong Here (FAQ) I figured I'd nip this in the bud before it starts up in the new forum. Original post is copied from Munbar of Wyrmrest Accord, but I've expanded it. Q. My new RAF thread keeps getting locked, why? A. The New Player Help and Guides forum is no longer being used for RAF. Q. Why did my reroll/leveling partner post get deleted or moved? A. Because rerolls and "LF leveling partner" posts are deemed recruitment threads, and recruitment threads do not belong here. They belong in the realm forums or the guild recruitment forums. Q. But I'm not recruiting! A. In the eyes of the moderators, yes, you are. You're recruiting someone to reroll on a server or join you for leveling or meet in-game. Hence why the threads will be locked/deleted or moved to the appropriate forum. Posting on a realm forum has a better local audience for leveling partners anyway. Blue post: ... ... Another blue post: ... As one of our regulars Monmon so eloquently put it: ... Q. Where do I go to post my RAF or recruitment thread? A. You should head to either the realm forum of the realm you are planning on finding someone to RAF, or the guild recruitment forum on your faction. If you need something like charter signatures or other "local" hookups, go to your server forum. Q. But I'm on a trial account and can't post there! A. Cry me a river. You're still not allowed to post it here. Get an actual friend to recruit you rather than fishing for a stranger on the forums. Q. Why did they stop using the New Player Help and Guides forum? A. The RAF threads were reproducing so quickly that the forum was getting bogged down by the reposters and spam, detracting from the forum's original purpose, which is helping newbies with their WoW questions. RAF does -not- help new players, as the vast majority of RATS (recruit a total stranger) hookups fall through once the trial account is made, or the new player is left with little experience, gold, and the supposed "forum friend" ditches them readily. The forum regulars went on a crusade against the RAF spam, and we finally got Blizzard's attention. The mods have been quickly removing/locking the RATS threads, keeping the forum happy and clean. Q. What action will be taken against me if I keep posting in the New Player Help and Guides forum? A. Your forum account will likely be banned after repeatedly posting the same thread after it has been locked/deleted. Q. Where should I go to suggest a RAF forum? A. Head to the Website Feature Suggestion forum. ( Q. Can I post in the General forum about RAF? A. As of now, this has been undecided, yet some people have been. It is recommended to go to the guild recruitment forum or realm forum. Q. When will a RAF forum or sticky be made? A. As of now Blizzard is not planning on making an RAF forum or stick. If you continue to suggest it in the Website Suggestions forum, this might change. Thank you for taking your time to read this, please go to the suggested forum stated above before posting your RAF and recruitment threads.Icedragon89 Mar 15, 2017
As for Battle for Azeroth’s lack of new 120 talents, Hazzikostas explains it as a tough scenario. If the designers come up with three new abilities for rogue or death knights, those classes may not necessarily need three new abilities. Those abilities may be filler, or they may shore up a weakness in the class design and remove counterplay. That being said, Hazzikostas does agree that “it’s possible we’ve gone too far.”
Level 120 comes and goes. Island Expeditions have unlocked, but it turns out they’re not much fun, and the most rewarding versions are only accessible to premade groups. You turn to Warfronts only to realize they’re not available this week. Fine. You can always grind out better gear. Except as you do, you notice your new gear has higher Azerite requirements than your old gear, which means your shiny new items have fewer unlocked traits than what they replaced. Discouraged, you decide to roll as one of the cool new Allied Races. Except you can’t because they’re all locked behind reputation grinds.
Sylvanas initially planned to simply capture the city, holding its inhabitants hostage. But after the Night Elf leaders were able to escape, rather than cut her losses, Sylvanas ordered the Horde to burn down the entire city, slaughtering hundreds, maybe thousands of innocent civilians. As a noble, honorable faction, many Horde leaders (and indeed, players), were alarmed by Sylvanas' actions, forming the basis of the Horde story arc moving into Battle for Azeroth.
Soloing an instance can be all the more profitable if your character is an enchanter. During any solo instance run, you'll end up with some items which can be sold or traded, and some that are bind-on-pickup. Non-enchanters can only sell these soulbound items to a vendor, but an enchanter can disenchant the bind-on-pickup rare items, and then sell the shard/dust/essence instead of just selling the blue item to a vendor. (A side benefit of selling enchanting materials is that they do not require a deposit to list in the auction house, allowing you to list endlessly until the item sells.)
Step-by-step class guides are on the way!  The 1-12 Mulgore Guide is the first guide to get all the individual class steps.  At the top of the guide, simply select which class you are playing and the page will dynamically update all the steps in the guide for that class (both text and images).  The rest of the guides will be slowly updated overtime to include all the class steps, but you can see how it's going to work with the 1-12 Mulgore.  I want to thank crazyK and his Placeholderguild for helping me out with the individual class content.  They are allowing me to get the 1-60 Alliance guide done while also getting all the class steps done at the same time, so everything can be ready for Classic launch (hopefully).

Many players who already have higher level characters create alts that they level to a certain point and then stop. Often, these twinks are level 18-19, 28-29, 38-39, etc. for the purpose of going to battlegrounds at the top of their tiers and kicking butt. Since these twinked characters are owned by higher level players with lots of cash, they usually outfit them with the best gear available at their level. Thus, items that require level 17-19, level 27-29, or any other items around this level, with good stats or dps, often sell for much higher prices than they normally would. This is especially true on an older server, and also especially true of blue (rare) items. In general, "good stats" include Cloth "of the Eagle" (for mages, warlocks), Leather "of the Monkey" (for hunters and rogues), and Mail "of the Bear" (for warriors/paladins)as well as weapons with these suffixes that can be used by the right class.