Did Facebook ads targeted at people under 50 unlawfully discriminate on the basis of age?

Several property management companies in the Washington, D.C. area advertised rental properties on Facebook, but only to users aged 50 and younger. Plaintiff, a 55-year-old woman, never saw these ads while searching for housing. She sued, claiming the companies discriminated against her based on age. Plaintiff argued that by excluding users over 50 from seeing…