The same 1st post modification allows the 1st post of every thread to show up at the top of every page, no matter what page the thread is on.
For example, if we're on the 5th page of this post, we would see this initial thread so the people who eventually come on the site will know what we're talking about based on this particular post. This will come in very handy for the "for sale posts" etc. Let me know what you guys think. Make sure you guys vote because I'm going to make my decision based off of your feedback.