It's not just that, it's the fact that most interaction on the net is text based so you miss out on tone and body language. I feel like some discussions escalate too high on the net due to the text based format.
Definitely. I remember one time a manager from another group at work asked me a question about when a project would be done, and I responded along the lines of "I'm working on it, and I don't know when it'll be done." because it was the truth, and there was nothing else to say about it. They interpreted my single sentence reply as rude and dismissive, then complained to my manager about it. When my manager talked to me about it, he said something like "Oh, ok, your reply is fine, dont worry about it."
