I honestly think that besides the streamers everyone else is just random. I got an original Beta invite to Vanilla (so, so long ago) and played all the way to Cata. Took years off and came back for BfA (same account), and I got an invite to the stress test. I consider myself an original player, but I wouldn't say that I earned it over someone like you. Just random.
Holy: Divine Favor - Your next Holy Light or Flash of Light is increased by 100%, costs no mana and is unable to be interrupted. Protection: Steed of Glory - Your Divine Steed lasts for an additional 2 sec. While active you become immune to movement impairing effects, and you knock back enemies that you move through. Retribution: Unbound Freedom - Blessing of Freedom also increases movement speed by 30%. Priest

The vanilla WoW Horde leveling guide you see on this site was originally made back in 2006 by Joana (AKA Mancow, or FuriousPaul).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.

×