Comment Re:There is a fine line here (Score 2) 340
I can also think of a legitimate use: if you have a selection of ads for the job in question that are tailored to appeal to typical potential employees in those age groups. To stereotype (since, necessarily, this would), maybe your young ad emphasizes the cool work environment with bean bag chairs (ha), while an ad for older workers emphasizes a strong benefit or relocation package. If they _legitimately_ want to diversify their workforce with people of different age groups, and have pretty good proof that they don't deserve to be sued, I think that's a good strategy.
Or design ads that appeal to all of them equally and stop it.