The problem lies with how some navigate into/through the posts.
I navigate using the forum tree which shows the different forums, so I don't have to click into any forum I'm not interested in.
However, using the Newest link in the blue bar on top of the screen, it will show you the newest post made on the page independent of what forum it was posted in. The forum is listed on the far right column, but most people will read the topic title and click in without even making it that far.
Regardless, I fail to see where anyone input is worth less because they don't own the same type of RV another does. In most cases, a lot of the systems between a class A and a towable are the same.