Others have closed behind it. Demand has clients like USA Today and LiveStrong and others. Google is cracking down on search engines, but they aren't banning anyone they feel are trying to edit and improve.
I've talked with Google folks, they are more interested in websites that are spam, not people who at least have an editorial team. Does DS need to be ranked as high as they do?
Maybe not, but they did put in the work. People do read the articles. Some people find the information useful. After all, Google often ranked by popularity, not just keywords.
I've seen what the Google editorial team are looking at, and while they do want to make adjustments for quality, the type of websites they are aiming are certainly spam.