Never, because it's kind of absurd to create an ETF for user payments, which is kind of to GP's point. Unless of course you stand to benefit from the transacti

Never, because it's kind of absurd to create an ETF for user payments, which is kind of to GP's point. Unless of course you stand to benefit from the transactional data, which I'm not convinced this Calibra isn't a trojan horse for Facebook to get the data from.