Audio is extremely subjective....much more so than most areas of interest that people gravitate to. That naturally makes it tougher to agree on anything. Everyone is right in their own mind, and wrong in the eyes of most others....just ask an audiophile! Audio sure seems a bit less social on the internet...I’ve had many face to face discussions in person that always seem to go well. I do however think that audio tends to attract more obsessive types that are a bit more recluse than say bicycling or golf. I suppose the fact that it's more passive than some activities is a factor too.
I used to spend a lot of time on woodworking sites. They all have their preferences, but it’s no where near as contested and controversial as audio forums seem to be. There was always a lot of enthusiasm and encouragement for new tool purchases, and new projects. It’s pretty easy to convince someone that a 3hp 500 pound saw that runs on 220v has advantages over a 35 lb portable that plugs into any wall socket, though both have their place....it’s far more objective and tangible. A similar discussion in audio ends up with hurt feelings because the performance is so subjective regardless of the tangibles like price and specs.