The thing about the virtual world is that it's easy to be happy, grateful, and wise. Yes, we can sit here and type away, saying all sorts of altruistic and wonderful things. the flip side is true, too--we can be horrifying and rude, and then log off.But mostly, when I read Facebook or Twitter, people are pretty much sanguine, thoughtful, brilliant, and full of hope and love.It's in the real ...