Think about it
I think post count should be removed because:
1) Some people try to get their post counts up by sending trash posts. Real issue and posts with real idea gets lost.
2) You get judged by your posting count. You say post count doesn't matter, but you have to admit, guy with 1000 posts gets a lot more "respect" than guy with 10 posts. This keeps prejudices going.
3) You can't have any use of them.
In ns you don't have separate scores for marines. Why you should have here, in the forums? Now this probably won't go through because even moderators want to keep their 1337 signs(3000 posts) visible, but I give it a shot. Competition for posts is stupid, so if you want to know for "fun" how many posts you've done, start counting them manually.
Edit: Mainpoint is, erase post count but keep the titles.
"Now this is going to be your first day out on a strange new planet, so I want you all wrapped up snug and warm, and no playing with any naughty bug-eyed monsters"