In theory it might sound like a good idea, in practice if it is going to stay, it needs improvement.
There is a support forum here on Boonxe that has six or more "parts" to the topic, You have to scroll to the bottom (that is another issue, how about telling me how to have the latest replies to a topic at the top) of the page to find that the topic has a new part; click on the link, go to the next page, scroll to the bottom only to find out that there is another bleeding part, click on the link, scroll to the bottom only to find another bleeding part, and you do this for some five or six parts. At least if the latest forum topic was at the top of the page, you could just quickly click through to the end part. Even if you use the page down button that is still more clicking and pushing than it should be. Or if this asinine autopilot thing is here to stay, then when you visit the topic that has several "parts" linked together, then display that at the top with some sort of navigation to the parts. Can you imagine a topic with some 20 parts to it? Hell's Bells.