[mola]

What exactly is the author trying to explain? If he tries to explain why these holy wars happen, his explanation is very lacking. He doesn't seems to consider the psychology and emotions of the human participants. It's rather strange trying to explain a human social phenomena without considering humans. If he just tries to talk about how platforms compete and effect each other, as abstract entities, i.e. a non social phenomena, then the title does not fit at all.

[zozbot234]

OP is not trying to comprehensively explain the dynamics behind holy wars, but simply to figure out why there are holy wars about some things and not others. OP's answer (holy wars are about 'platforms' with sizeable network effects) makes at least some kind of sense.

[amadeuspagel]

Emotions aren't random. To explain how someone suffers from something does explain his anger.