For future reference, here is how to manually compute your post count.
Everyone starts with 0 posts.
Every time you post, there are two possible changes:
(1) if it is in "Off-Topic Discussion" or "The Junkyard", post count changes by +0
(2) if it is any other category, post count changes by +1
If your post is deleted from the forum, post count changes by -1
If you originally post in a category besides "Off-Topic Discussion" or "The Junkyard" and your post is moved to either "Off-Topic Discussion" or "The Junkyard", post count changes by -1
If you don't trust the forum software, it is handy to manually compute your post count on a sticky note and place it on your monitor.