A person's value to this board should not be measured by number of posts. If someone wants to be "rewarded" then write strong, well-reasoned posts and you'll probably get positive rep points. And even if you don't, I think we all know who the valuable members of this board are.
But I understand your frustration. You're thinking someone might see you with just a few hundred posts and wonder why they should listen to you, you n00b. But I'm telling you that you needn't worry so much about what others think....just what I think
Seriously though, quality not quantity. I don't mind posts counting, but don't think it's a must.