Speaking from experience, not having to rely on what "they say", it's never been a problem in the decade I've been mining and trading cryptocurrency. And that before inhouse transactions which Coinbase, Paypal, Credit Card Companies, and some banks have implemented.
So why did you only recently join Free Republic to spread lies, scumbag?
Sorry little hysterical screecher, you’ve shown you don’t have any understanding of the underlying technology. You are a hack, clueless end-user. THAT IS ALL. “I clicked the button on my app two times and it works...”