The H-1B visa issue rarely surfaces during presidential races, and that's what makes the entrance by Sen. Bernie Sanders (I-Vt.) into the 2016 presidential race so interesting.
... ...Sanders is very skeptical of the H-1B program, and has lambasted tech firms for hiring visa workers at the same time they're cutting staff. He's especially critical of the visa's use in offshore outsourcing.
And what company is pure enough for you?
Anybody who gives you free social networking is evil, and anybody who charges money will fail.
Clearly, you can NAT an entire nation! IT JUST WORKS!
(Of course, the fact that one of the most reclusive and oppressive nations in the world is using this isn't a shining endorsement, but still....)
Sure, but your big NK router only has 64K ports per external IP address. It will probably croak well before it has 64K NAT sessions going, though.
The worst downside (besides having to set up and manage the thing) is spam control. Gmail is excellent at this, and Postfix/Amavis/Spamassassin only catches a fraction of the incoming bad stuff. There are cloud services for spam filtering, but they seem expensive for a single user.