The "proof" isn't going to show up until your money is completely and totally gone, until then look at the evidence and make your own decision.

If paycoins are worth 20, why don't they scoop up all these 7 dollar coins to put 13 bucks in their pocket?

Why didn't their pools payout freshly minted coins?

Why are they having so many issues with the paycoin pool if they have been running pools for months?

Why did they quickly abondon their miners that could somehow mine on 2 pools at once?

Why is there no option for their sha miners to mine paycoins?

Why do they miss every deadline?

One of those questions would scare me to death as an investor, all of them would make me run for the hills.