Posted here are some very likely Scam sites, and users that are very likely scammers, shills, untrustworthy

Sites:  Bitzino, PrimeDice, Bit777, Just-Dice, CoinChat, CoinLenders, BFL-ButterflyLabs (and their operators)
Users:  Dooglus, Zaih, Inaba, DiamondCardz, MPOE-PR, Matthew N. Wright, TradeFortress


TradeFortess currently appears to be the most active scammer, and may use more elaborate scams than average.
Matthew N. Wright is attempting to partially set right his scams of the past.