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Here's a hefty guilt trip for Twitter's overtaxed engineers to bear: TechCrunch editor Michael Arrington has blamed a recent outage for making him feel bad. He writes: "I'm in a particularly bad mood because I have food poisoning (thanks very much Grand Hyatt Seattle) and Twittering it was going to make me feel marginally better because a bunch of people would say something nice in a reply. But they take even that away from me." It's official: Arrington is self-medicating with Web 2.0. Folks, should we stage an intervention? (Photoillustration by Jackson West, from an original by Scott Beale/Laughing Squid)