Who told you she didn't ?
Here is a glimpse of her articles.
http://www.thepeninsulaqatar.com/q/54-mariam-al-saad.html
Mariam Al Saad has been writing for over 20 years. She've been harrassed & many of her articles were censored
Just recently she wrote, what shall we do with our banned Articles

"Whenever the editor refused to publish an article, I was scared to attend a call from the newspaper in the evening since I knew that there is resentment from the article and its fate swings in a court of execution. I asked myself whether the provision with another article would be a solution. What should I do with my banned articles?

Suggest me my dear readers what should I do with my banned articles? What is the way to lift the ban while my language is rational and objective and there is no infringe or provocation or extrusion, but it covers the discussion of public issues raised by the general public.

We have the right to speak for others but are prevented from expressing within our borders.

Where is the National Commission for Human Rights and the Doha Center for Media Freedom? My dear readers I want an answer. Please advise me what to do with the banned articles?"