is buying a cell phone bad??
A criminal talking about buying a jailbroke(I hope he's a talking about the phone, how do you jailbroke bitcoin?) untraceable phone to mask other illicit activity doesn't sound like ringing endorsement to me(its at best shady at best) .So we're rejoicing because they didn't portray it as bad as they could(they need to make Jamie's character likeable or at leas tolerable, after all) ? Hey at least he wasn't trafficking cocaine or hiring a hitman with it

it doesn't strike me as bad. It's clear that it's anonymous. I think it's awesome exposure! The slight pause makes the word more noticeable, and it is used as part of the story line, drawing just enough attention to it.
"Prepaid with gold coins" / "prepaid with bitcoins" - nice. I like it!