You are welcome to altcoinstalks.
First, we get two types of karma, Positive and negative karma.
Positive karma you get it when you post a quality posts and if person like am e can feel to give you the positive karma, is just be like a reward and also it means sey you dey follow the forum rules.
Negative karma this one is just the opposite of positive karma, if you dey misbehave anyhow, posting rubbish, plagiarism or spamming dey go give you negative karma and it's a bad reputation because no one go trust you again and you no go fit apply for any campaign.