I start to be A Dick when faced with silly behaviour. If I'm wrong, let me know with evidence and I will appreciate it or outright say I'm wrong. If I'm right then accept it or at the very least acknowledge the evidence against.

Right, wrong, who cares, just so longs as one of us learns then the world's a better place and that's what I want.

If someone keeps pushing a losing position or asserts X without justification, or can't be bothered to read what I wrote, or a post with evidence I spent time collating gets downvoted sans reason, I get pissed off and The Dick races out of the blue corner, fists swinging[0] (and DanG often ends up wielding the big stick to calm things down).

How do I cope with it? - I am thinking of leaving HN. It's avoiding the problem not solving it, but it's a solution of sorts.

[0] Well I hope those are his fists swinging.