Is the 30 posts per month automated (the website just changes you to non-clan status) or does the clan leader have to remove you?
When I was in the MKRealms clan unfortunatly life would catch up with some of us in really bad ways (house burns down, family death, etc) and we would not see some members for a month or more (depending on what happened). If that happened, we'd try to let the clan leader (or itleast another member of the clan) know so we would not be 'inactive' in the clan. If it's automated, the clan leader might know of your situtation and not be able to keep you in the clan system. This could have some unintended consiquences (like i only posted 29 posts this month instead of 30).