It's disheartening to see this at the top. First because Tyson should be vilified for defending what he believes in, and second because this level of cynicism is apparently easy to vote up on HN.
Neither of your reasons are very compelling to me. People should be vilified for believing bad things. Justified cynicism is just realism. Note I'm not saying that the OP's comment proved either of these is the case in this situation. I just don't have the evidence to make that claim, and I'm more inclined to see it as a blend. But he seems to believe he does, and provided us with his reasons. You have only given your emotional reaction, based on beliefs whose rational basis we have no way of knowing.
If you don't like the comment, it's a lot more productive to respond to its substance (why do you disagree?) than to share how it makes you feel.