I see the same usernames over and over and over again.

dang (obviously), WalterBright (D, C++), pc (Stripe), steveklabnik (Rust), antirez (Redis), jedberg (Reddit), gwern (gwern!), burntsushi (rg), patio11, fossuser, kube-system, api, sillysaurusx, smoldesu, dragontamer, ethbr0, and our favorite, hnthrow(away)?.*