Free and open source software (FOSS) advocates need to stop obsessing about Microsoft. But, just as clearly, many of them won't, if the reactions I received when I blogged about the subject are any indication. Never mind that FOSS is a necessary fixture in modern business, or has evolved defenses that ensure its survival -- or that paranoia and juvenile gestures like talking about "Micro$oft" and "Windoze" only hurt the cause. For many, hatred of Microsoft is a way of life, and they'd be lost without it.