Who started “Leekspin (Ievan Polkka)”?

mikkikoron, on Open web, Apr 20, 2006. It reached 5 platforms in 17.7 years.

LineageContestedKey steps, 11 of 15. Lines follow time and platform
mikkikoronFirst postKrunk4EverOpen webMireillechanYouTubePlatform jumpBacklashPressCommercialOwner responseMilestoneCommercialAfterlifePatient zero