Ya, this was explained a few months ago in another post in the PS3 Chat section... I don't have time now, but if I do in the next few days I will try to find and link to it for you to read.
Regarding posts, if you read the STICKY threads here it tells you posts in the Newbie and PS3 Theme section don't count towards post count... only quality posts in the other PS3 sections will. However, most of your posts are just questions, so those wouldn't belong in the other sections anyway. Update
: Here is the link: http://www.ps3news.com/forums/playst...-97773-17.html