I can guess why you're being downvoted, but your comment is ironically correct. It /does/ say something about them! But what that is depends on who you ask. And that, again, says something about /them/.
People are getting offended, but I could have replaced Windows with almost anything. Our choices say things about us. Getting back to the subject at hand, though, I assume 'moxie meant that people who choose to use GPG for casual conversation must be slightly masochistic and therefore slightly less likely to have something interesting to say.
Yes, of course, but I'm very curious about moxie's interpretation of what using GPG says about the people who randomly email him; certainly more curious than constructing my own stereotype.
Which says something about the downvoters.
Irony everywhere.