[WetWired]

As I already stated, $post is used in about 50 templates and several files. Where exactly do you want it changed and what part of it? $post contains a lot of information and some of it comes from different sources than most of it, not only that, but $post can refer to an actual post, a private message, an announcement, a post in progress, and unless it's changed is still valid for accessing profile page data.