What is the deal with Twitter? I just don’t get it! I’m with Kathy Sierra on this one. (For those who don’t know, Kathy Sierra is one of my all-time heroes — a brilliant educator, writer and blogger who shut down last year due to misogynistic death threats. Would the bullying have been so egregious, . . . → Read More: Twitter — the birdsong of 500 lb. canaries with bullhorns?