They’ve been liking their own posts too. THAT is sockpuppeting 101.
https://worldofwarcraft.blizzard.com/en-gb/character/us/frostmourne/uulomul/collections/pets
https://worldofwarcraft.blizzard.com/en-gb/character/us/argent-dawn/ayakuma/collections/pets
https://worldofwarcraft.blizzard.com/en-gb/character/us/garrosh/taalexya/collections/pets