One thing I noticed from the Open Change representative was a clear lack of understanding exactly how serious this matter is. They have not really done themselves any favours by saying they have returned the stolen 10% of the funds to OP therefore the matter is closed. Their shady business practices ensure the matter cannot be closed on whim or their say-so.
I agree, Open Change should be avoided at all costs because there is a serious risk of them users having funds stolen.
To OpenChange; if you're reading this: if the exchange you work with, uses such explanations to steal your funds; and then you try to pass these costs on to your customers, I'm sorry, but you're the stupid party in this business relationship. Your customers know that all this 'tainting talk' and 'risky transactions' is bullshit. Like: how is a Bitcoin transaction risky for you? It's the most irreversible way of transfering money; you got your coins, you're done. No amount of 'alleged risk' will result in an actual risk to your company.
I definitely agree with this. Judging by all of the above, OpenChange should be flagged for illegal misappropriation of user funds and avoided at all costs.