Now the number of posts I have made totals 25, not including this post. Usually I don't have to wait long to balance the number of activities with the number of posts.
It seems like the forum system is working well regarding updates.
If I have correctly, you have been active in 5 two-week activity periods. This means that you can increase your activity up to 90 in the current activity period.
For increasing your activity to more than 90, you must have at least 91 posts and have at least one post in one of the next activity periods.