Hi,
I know that 30 posts are needed to be a jr member, but what is the weekly activity-limit? Can i uberhaupt achieve this status in 1 week?
No. You will need to post in 3 different periods. ( Each period is 14 days) to gain 42 potential activity. Then you will need to make another 27 posts to achieve the Jr. Member status (Since you already made 3).
time = number of two-week periods in which you've posted since your registration
activity = min(time * 14, posts)
(your time is* =1)
Or simply post once a day, since that would gain the same result. 14 activity over 14 days = 1 activity per day.
So atleast 4 weeks, and then depending on when you registered, it could take an additional 2 weeks..