At first I thought you were the author of the article you posted.
The cheetah bot upvotes posts it finds online. While just posting content you find elsewhere isn't wrong, not stating where it's from is. People consider that plagiarism, and some people get very offended by it.
All you have to do, is either write your own words and link to the article, or if you don't want to do that, simply state that the article is from wherever it is from.