by JRandomNoob » 04.27.12
OK, so all of those anonymous guys have (or at least are shown as having) B3 id of @0. Among other funny effects, this means they effectively cannot be warned (at least not by B3) — every warning is 0th (WARNING [0]:), and their speech isn’t recorded in the chatlog. OTOH B3 still differentiates them somehow — today I saw the bot telling me twice that [pm] WARNING: [@0] <name> is under suspicion of cheating.