Lol if you want the overdrive you have to get your activity to lvl 100 but only one person can hold lvl 100~ The activity counts how much you have been doing for the past month but for newer people who have been here shorter than a month it will count the days since you started~ Or so that is what i believe~ Anyhow you see how its easier to post 100 times in one day than in 30 days right? ;p