Yay now I have 29 and after this, there will be only one left to level up!
Nope. You won't. You would need 30 activity before leveling up to next rank(Jr. Member)
Jr. Member: Activity: 30
Member: Activity: 60
Full Member: Activity: 120
Sr. Member: Activity: 240
Hero Member: Activity: 480
And activity is calculated:
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)
Activity is updated every hour.
https://bitcointalk.org/index.php?topic=178608.0You already got 28 activity, just 2 more and you'll level up. ^^