If someone like Coinbase takes away 95% of the risk, then who cares? They just branded themselves as "forward thinking" and now have a potentially larger customer base (although they don't accept bitcoins if you're shipping internationally).

Also, where is the technology going? Seems to me it's already there. If there are any fatal flaws that pop up, it's a matter of flipping the "accept bitcoin" switch to "off" and calling it a day. I don't see the issue here.

And taking such risks impulsively yields big rewards, from time to time.