I believe that tk808 is a merit source and from his merit history, he seems to be dedicated to Altcoin Discussion section. He might be an example of a merit source for low ranked members. However, there are various ways to earn merit: helping other people, making jokes or funny comments, exposing scams, sharing deep, dark knowledge, etc... If you're good at any of them, you will eventually get merits and rank up. Generally, I don't think merit sources for low ranks are necessary. And if it is, who would volunteer to do that?