I like post count because I'm interested in knowing just how many posts I've made on a board. Well, with some forums or categories that don't add to postcount, some boards taking away from postcount as a form of punishment (weird...), and admins or mods messing with people's postcounts for any reason at any time, your own postcount is rarely the actual count of posts you've made on a board.
I knew with random ranting and various other factors on this board that my 1908 (or 1909 now?) posts aren't how many posts I've really made, so I was interested in finding out the actual number. Before you ask why, I'm just curious to know. I just like to see what I've done on the boards I visit. SMF actually has a lot of sweet statistical features. =D
My true post count, with this post, should be 3,100. lol That's a huge difference.
I figured other people might want to know theirs as well. So for anyone who doesn't already know how, the easiest way is to go to your own profile, (click on yourself to view your profile, just like you would to view someone else's profile) go to "Show Posts" on the menu to the left, find your way to the very last page in your list of posts, and then scroll to the bottom of the last page and find your very first post.
The number of the post is your true post count. =D
Though... this obviously doesn't count any of your posts that have been deleted... this is as close as you get!