I've never checked out the Steam forums so I don't know what it's like, but I do feel like one person's "too much" is often another person's "discussion."
Remember that guy Gormak? He was from the steam forums. Mild criticism sent him into an abusive rage last week - for which he was banned.
That's called "low emotional intelligence" - being unable to identify and control your emotions.
That sort of thing is common there.