“David, you’re sounding like an old dude!” Matt Flannery, who runs social-lending website Kiva, couldn’t understand when I explained that, no, I wouldn’t be keeping in touch with him via Facebook. “What are you worried about?” he teased in a break at the PINC conference in Holland. “Only old guys get worked up about privacy.” […] "David, you're sounding like an old dude!" Matt Flannery, who runs s