Full Member: Activity: 60, gets 3 gold coins under his name.
Sr. Member: Activity: 200, gets 4 gold coins under his name.
Hero Member: Activity: 400, gets 5 gold coins under his name.
These are just a couple of ranks which display how much activity is needed.
However, activity is updated every 30 minutes. This is a quote of theymos:
Quote
The activity number is determined in this way:
time = number of two-week periods in which you've posted since your registration
activity = min(time * 14, posts)
