Naw, you just need to figure out what the hell you're talking about next time, before you decide to make assumptions about things you're clearly wrong about.
Mike. Steel flexing is totally different to wood flexing. On Steel coasters the fibers in the steel are what bend, not the joints. This is infact good for the ride. On The Rattler, the actual joints are taking the strain of the flexing, which is bad for the ride.
The structure of the ride bends based on the impulse being placed upon it. We call this a change in momentum because the force of the train coming around the bend is subsequently causing a reaction to said structure. The structure was designed with this in mind, with the wooden beams absorbing the force (which is why eat beam is pressure treated in a vat), which is why most wooden structures include cross bracing and lateral braces on top of those. If the joins between each section of wood were absorbing the force, you'd have a poorly designed ride. If the structure is too rigid, the entire thing will eventually crack from the excess strain.
This is why I made the Mean Streak comment - a ride that had bracing added to its structure after it opened. If you want to know why there's a giant trim brake running down the first drop - this is your answer. You might as why I know this - well I'm relaying information given to me by one of the maintenance directors at the park. So in correlation to Rattler, I'm saying that the already rough ride that it produces would only get worse if more bracing were added. But you start to wonder why year after year after year they leave it be - so you refer to the first paragraph and understand that although it seems dramatic, its obviously necessary for the kind of ride that it is.