Ranking depends on your post numbers. Higher ranking gives you opportunity to join signature campaigns and earn more tokens.
post Ranking
20 Jr. Member
60 Full Member
120 Sr. Member
500 Hero Member
Post in the wrong section = You get Negative Karma
Post useless replies = You get Negative Karma
Too much Negative Karma = No tokens for You
This post of yours earned you a negative karma. Because it is a content shared by the admin and you haven't added anything to it (apart from the colours) to make a post for yourself. Either it should have been an answer to someone's question or you should have added your views about it.
Further i also see that you have posted the exact same answer for 2 different posts, which can be seen as a spam.
Start learning and share what you have learned with others or indulge in a healthy conversation. That's the way to move forward in the forum. Don't worry about losing a karma point. Because, you can earn them very fast in this forum.