Hello GameBeaver, I am currently investigating this issue, and I think that I have found the problem. Sometimes (like right now, for me) the character counter is not appearing for some posts. The problem is that it tries to start itself up, but the page is not yet loaded. Because the page isn't loaded at that point, the counter doesn't have a place to "stick itself". I have put this in our sitewide todo list as a major priority item, and I will be implementing a fix soon within the next week.
Key Gear's post in Missing letter counter was marked as the answer