I am a regular web/bitcoin user. Given available information (I already know about the links you posted) I can't determine if this site operates honestly or not. Their lack of PR has no influence on this, and their MO is not significantly indicative of the actual functionality.

It is also very hard to provide proof, they can't just generate a proof of funds and assign users to each slice because of the HUGE implications this would have on everyone involved.

They also can't provide one day or even 3-4 days worth of trading as proof the system works, because they would just show 3% of the funds being used in some trades with little loss and either honest or subversive, the results would look the same.

With careful planning I can run an identical service to this one, in one of the two modes: honest or subversive. For over a year. I don't see how they can provide any proof, maybe that full-scale third party audit could demonstrate the honesty.