Auios in the steam chat is Cca. Cca is exactly the kind of person to get immensely obsessed with cheats and Stream is actually trying to overwhelm him in the chat after finding out about him trying to manipulate him.
I'm not exactly sure how it went down, but Cca had been lying to both metario and Stream (who re-pioneered speeds, by the way) for some time in attempt to halfassidly resurrect some old blhack code base from years ago. Apparently he kept lying about me being his underling and how I would've wanted him to have the hack or some bullstuff and Stream asked me personally for verification. After finding out that none of that was true he decided to tell Cca to basically forget off and threatened "spreading the speedhack" to everyone in order to spite him (this obviously isn't happening, either).
Take it as you will but Stream isn't as bad a person as the conversation portrays. The chat you see is actually an attempt to irritate Cca and isn't sincere. The way I see this drama topic is a bitter attempt at revenge from Cca with the chat logs as one sided as a mobius strip.