Just like any group of people, with diverse perspectives, experience and objectives, you will get disagreements. How those disagreements are handled may reveal more about the person than the merit of whatever it is that they are arguing about. Today, for some reason, I thought about Enid Lumley. Remember her? She used to write a column for the Absolute Sound back in the 80's, i think it was, and some of her ideas at the time, seemed pretty wacky. (She was obsessed with AC polarity, a controversial issue, but not something that was completely crazy, and some of her ideas about tweaking had merit). (Sadly, she passed away a few years ago).
I've learned a hell of alot here, when I've asked questions about electrical issues, experience in component matching and sound, etc.
There is no doubt ego at work here for all of us- who doesn't think, after doing this, right or wrong, for however many years, that they know something?
But, i'm always learning, and always willing to contribute. And I think the majority of people here are well-intentioned, even when they are entirely misguided. :)