PMSTwin

PMSTwin shows Amber "Athena Twin" Dalton, the co-founder of PMS Clan. Dalton and her twin sister helped establish the competitive-gaming organization in 2002, and Twitch hired Dalton in August 2011. By 2014 she was Twitch's Director of Marketing Events and described herself as one of the first hires made specifically for the Twitch brand.

The command combines two parts of her gaming identity: "PMS" comes from PMS Clan and "Twin" comes from Athena Twin. Dalton brought that competitive-gaming background to Twitch, where she worked on events and marketing.

Viewers type PMSTwin in Twitch chat to use it. It fits references to Amber Dalton, PMS Clan, early Twitch staff history, competitive-gaming events, and the overlap between esports communities and Twitch's early events team.