First thing to know about this place is that you won't get much explanation for why things happen from the Administrators.

Second thing to know is that the Administration here rarely make mistakes, so learn to trust what's going on.

Third thing...you've probably had some posts deleted, that will bring down your activity count if your posts don't exceed your activity. This is normal during early days of any membership. Try to make posts that have greater substance or participating in threads that are real discussions (and not frivolous).