>>>He argues just to argue and will take whatever side you don't.
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>Assuming you're correct- so what? Nothing wrong with having your ideas challenged. Good ideas end up stronger. Bad ones are prompted for reconsideration. Smart people see nothing wrong with changing their minds if there's better evidence. Whereas people who don't want their ideas challenged need not post them in a public forum, or need to choose a forum of like-minded people who can be relied upon to cheer enthusiastically.
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Again, that is all fine and good if there's a level of consistency. But when there's a pattern of aggressively challenging certain sources - and taking other sources (usually formal authority figures) with such high faith....