Re: The 'Validity of Opinion'
My opinion is that we spend too much time here arguing about the validity of someone's opinion. I've done it, too, but I've come to feel it isn't particularly helpful. Generally it just results in a thread getting sidetracked.
I agree 100% that some opinions carry more weight and are more fully supported by facts than other opinions, no question. For the most part, though, I'd like to have the opportunity to hear all those opinions and make a decision for myself on which is the most valid, based on the information presented and the reputation of the presenter.
It seems to me anything else is simply a matter of wanting to control the conversation. So what if someone presents an opinion and you don't feel that opinion is valid? Instead of trying to control the conversation by trying to make that person back down from their inferior position, it would seem more useful to try to convince undecided listeners of the validity of YOUR opinion.
And that's just MY opinion, lol. Not even worth 2 cents, probably.