The article states:
Demand Studios will leverage that scale and offer health care options to active, tenured writers, filmmakers and copy editors who meet eligibility requirements.
I am curious what their definition of tenured, active writers is. I presume that I am nowhere near eligibility for that. This is VERY interesting indeed though, and hopefully catches on to spread elsewhere.
Edit: And, it turns out that Freelance Writing Gigs has the details. 3 months is tenure, with an average of 30 articles per month.