Think of these articles as gossip. People gather and talk about «life and
death» somewhere 10.000km away.
NSA has a mandate. They can't break certain encryption. And guys who have
something to hide are going to use that. Or they are already monitored. Other
people use these tools too. And yea, they are suspects. All this stupid talks
starting on forums and mailing lists should start the day NSA puts in prison
a Tor user. Otherwise this is just a label.
Myself I use Tor for anything but banking. And I do GnuPG encrypt every mail
when the receiver has enough working braincells to operate GnuPG.