A second User name seems to have occurred in two instances, one it was done to ask a question without all of the preconceived notions of a poster coming into play. In other words they felt they could not get a reasonable or good opinion under their original name because of a reputation. The second was when someone just went off the deep end and to be able to post anything again had to come at it with a totally different name. As someone else pointed out it is interesting that even with name changes the writing style and opinions still shine through. I will admit I pay much less attention to names today as opposed to many years ago. Back then I could tell you who the poster was without even seeing the name just from what they said. It got to a point where I could almost write the post for them because they were so predictable and so consistant.
I came here in the late 90's specifically to plan trips, then I got involved with all the postings and contributed and commented. Then I left for a lot of reasons and finally came back because we were going a lot and I wanted to see what advice/ information was available. I try to stay more middle of the road because dispite a kinder gentler feel there are still those out there who will rip you up in a heartbeat if you don't walk the line. But that really is the way of a lot of boards these days, some are brutal but many are like this one, play nice and things go okay as long as you don't rock the boat too much.