I don't even go over to 5.0 Talk much anymore, not because of this but because I spend most of my forum time on other non car related forums, and most of the guys I care to talk with are here in the Squeaky, but the times I've been over there it has seemed much more civil than in the past. There's been a lot of bad eggs come and go.
One of the forums I'm a regular on is the Spydero forum, and I tell ya that forum is the most civil, well mannered place on the internet I've ever seen, and it really doesn't get policed until it's necessary. I don't know what's different about it vs. other forums, probably the complete lack of competition from member to member. Everyone is super polite and extremely helpful, every post gets tons of replies, and the coolest part is every new member is greeted by Sal Glesser himself (owner/founder of Spyderco). If you're at all into knives, I highly recommend it, you'll learn a lot about knives/steel/sharpening/etc.