Replying to Karma for posting?

Lately I've been looking at the karma ratings more on NS. before, i just dismissed them and ignored them. So I started thinking about whether or not they are a good or bad feature. I'm still up in the air with my opinion as I think it can hurt people who simply don't post as much, but still have good opinions and give good advice. Anyways, i went into my profile and held my mouse over the "what is karam" (or whatever the wording is), and it said that you can get karma for adding content and posting. Heres where my confusion starts:

Wasn't karma introduced so that instead of people being judged solely on their post count, they could be judge by the quality of their posts? Wasn't this an attempt to prevent post whoring? Well if posting helps up your karma... how does this solve anything? Not trying to hate on anything... just pointing something out.