The message under your username is an indicator of your post count, except for some members with custom messages.
0-14 - New Member
15-49 - Knows Where the Search Button Is
50-199 - Thumbs Must Hurt
200-499 - Talking BlackBerry Encyclopedia
500-999 - Crackberry Addict
1000-2999 - BlackBerry Extraodinaire
3000-4999 - BlackBerry Master
5000-6999 - BlackBerry Genius
7000-9999 - BlackBerry Mensa
10000 + - BlackBerry God
Copied from here:
http://www.blackberryforums.com/site...orums-com.html
I'm glad you are enjoying your Z10.