One point makes me feel they are not a Ponzi : they offer NO referral comission. For me it is like they sais me "we do not need newcomer's money to survive".
I would agree about the referral statement. Also, they recently switched to a variable interest payout. Instead of getting '7%' amount every week or 28% per month (depending on your setup) for example, the rate will now vary depending on their performances. Also, if you read some of the statements and see some of the support on their forums, you may think they are not ponzi.
Who knows really. I did make a small investment with VAOL. It might turn out to be a great thing, or they might run with my money.
what makes you think next week? I could see them being scammers, but running next week?... I don't know. hopefully I'm deversified enough for it not to matter much if they do.