Introduced in patch 8.2, Essences for the Heart of Azeroth were unequivocally a great addition to the game.
The Requisition dailies are their own special brand of annoying, what with phasing starfish and limited spawns, but the Sticky Seaweed has been a particular point of frustration.
Update: With the World Quest bonus event and the Darkmoon Faire both on right now, it's a great time to finish grinding reputation for Allied Races!
Remember back during the Legion alpha when there was a proposed nerf to WAter Strider mounts?
I feel like hitting 110 was a lot less confusing than hitting level 120.