[issybird]

What ever happened to the mantra, "Don't feed the trolls." Words to live (or type) by. Ignore them and they'll go away.

That said, I agree with the OP. Why shouldn't people be entitled to express an opinion about something not directly relevant to them? And the attitude of, "If you don't agree with the collective opinion we'll stomp you" is very unfortunate in any public forum, because it does tend to stifle anything but groupthink. If you feel you must engage with someone you think is a troll (and again, why bother?), attack them on the merits of their post, not on what you perceive to be their motives or their personality.