What is activity?- Increase activity by staying logged in OR posting.
I believe logging in your account won't do the job. The only way to increase the "time" is to make a post in the period.
time = number of two-week periods in which you've posted since your registration
Good call, I've corrected the OP. Logging in does nothing for activity, you are correct about increasing "time".
Also, accidentally edited your post first instead of quoting it!