[mumblemumble]

Is FB making their raw data public, though?

There's a strategy/tactics divide to consider. Relying on FB's targeting algorithms is tactical - that'll give you great targeting once the time comes to execute your campaign.

But CA data, even if noisy, has been exfiltrated out from under privacy controls, so that you can get a much more direct look at it. That allows an analyst to get a more detailed sense of what social networks actually look like. I imagine that is more useful for figuring out what kinds of people you should be targeting in the first place, in order to maximize the leverage of your campaign.

[paulddraper]

I'm skeptical of the superior use of that in practice.