Hmm.  I just read https://bitcointalk.org/index.php?topic=1689727.0
According to activity calculations, activity is increased by staying logged in or by posting and is updated every 30 minutes.
There is a maximum of 14 activity points every 2 weeks.
UGH. It would take about 1.5 months to build an account to JR. Member.
Like most things, building up one's reputation and following takes time, effort, and a bit of care.