"Kek", from "kekeke"/"ㅋㅋㅋ", a Korean onomatopoeia of laughter utilised similarly to "LOL", could be the Korean equivalent of your English "haha". Considering that this is often Employed in StarCraft matches, Blizzard, Starcraft's builders, decided to reference it in Wow (2004): when a player with the Horde faction varieties "lol" using https://stewartg296ygn3.wikiannouncing.com/user