Who started “Twitch Plays Pokémon”?

Anonymous Australian programmer, on Twitch, Feb 12, 2014. It reached 6 platforms in 23 months.

LineageContestedKey steps, 11 of 16. Lines follow time and platform
Anonymous Australian programmerFirst postGame Developer / PolygonPressTwitchXPlatform jumpPeak proxyOwner responseBacklashPlatform jumpPressCommercialAfterlifePatient zero