Comment by NoMoreNicksLeft

>If anything, NAT has saved millions of wildly insecure devices running unpatched old Windows versions from getting pwned the second they connect to the open internet.

This might not be a good thing. Perhaps if there had been no protection for those odious operating systems, they'd have died the horrible deaths they earned decades ago. We should only want to protect things we intend to keep, after all, and none of us wanted to keep that garbage.