What it Means to Have an Opinion
I have strong opinions on certain topics, but unlike some people I know, I try to justify my opinions (see, for example, my philosophy page). Whether I succeed or not is another matter, but I think that the attempt at justification deserves at least some credit. And I've been known to change my mind if I'm convinced I'm wrong.
I take a somewhat dim view of the idea that all opinions matter, or that no one is ever wrong. I know at least one or two people who seem offended whenever anyone tried to point out flaws in their ideas. I think this goes beyond not being able to handle criticism; they are of the belief that every opinion has a bit of right in it. I know other people who consider it the height of rudeness to try and convince another person to change his or her beliefs. There's a tendency today to treat opinions like an outgrowth of your body, like a limb, and to equate the desire to change it with the desire to cut off one's hand. With this sort of attitude, one does not debate so much as exchange ideas.