In truth I have very little time for OS fanbois. Among computer forum posters, I think that some (mainly younger, male, geeky IMHO) people have an almost autistic type of obsessive attachment to trivial things like which OS they like, how much RAM, brand of CPU, etc. They remind me very much of a type of person we have in the UK called "trainspotters" who are (often with Asbergers) obsessive collectors of railway engine numbers, who fiercely champion their favourite class of engine.