I say again, you DO NOT NEED PPT to buy invoice. You can buy them directely with bitcoin and ethereum or by wiretransfer just by buying GBP TOKEN. This is explained in the whitepaper. So for everybody who think people must use PPT to buy invoice, this is NOT TRUE. PPT is not useful and will go to zero.
Not true, you need to have ppt in your account on the populous platform to securitize them for pokens, which then can be used to bid on/buy invoices.