On its face, this makes no sense... unless you consider this angle: Perhaps the folks running BX and not these mysterious "beta-testers" (who may or may not actually exist) are using this new ACH deposit system TO ARBITRAGE THE HELL OUT OF CUSTOMER FUNDS in order to stay afloat? This explains everything the stall tactics, the missed deadlines, the delayed deposits/withdrawals, the price/volume oddities...
Tread carefully, folks.
So......basically theft/fraud, but only temporarily and with the best of intentions o_O. That would explain my disappearing (cashed and not credited) $1,000 deposit, along with the myriad of other delays and stall tactics you mention.