Does anybody know how these ratings below avatar work?

[Verrona]

Hi all, just wanted to know how these ratings work below the avatar? How many posts do u need to gain another rating?

Its not highly important, but if anybody does reply i will be grateful

 

[ZER0X]

http://www.computerforum.com/showthread.php?t=713

 

[Praetor]

There's also http://www.computerforum.com/announcement.php?f=27

 

[Verrona]

Thanks guys that was helpful info!