Not really a suggestion. Post count not correct.

I notice my post count will stay the same for awhile, even after a few new posts.

Sometimes it'll stay like that and then finally jump up to (I guess) the correct number. How come it does that?

If I remember correct, I dont think anything in OT count as post count. Not sure though.

Stathi's got it. Some comments, in some subforums do not count.

Correct. There are some forums where posts do not go toward post counts. OT is one area for sure.

As for the overall post count for the site, though, every post counts.