RuleFive

RuleFive shows Chuk, the streamer behind WhenChukAttacks. Chuk was present in Twitch's early broadcaster culture by 2012, when Twitch singled out WhenChukAttacks as a strong example of what creators could do with its redesigned channel pages.

Dota viewers later used RuleFive as a lookalike reaction for player Clinton "Fear" Loomis, also known as FearDarkness. The association was still active in 2022, when Dota discussion threads used RuleFive directly in conversations about Fear.

Viewers type RuleFive in Twitch chat to use it. It fits Chuk and WhenChukAttacks references, early Twitch broadcaster history, and Dota conversations about Fear where the lookalike association is part of the joke.