[Udo]

What's the point of this? Besides the fact that you can type this in way quicker than the time it takes to select those options through the UI, it's another mechanism that devalues the average post content.

I think we could simplify this by replacing the entire post mechanism with a smiley button that you can click on, say every full hour, to let the world know you still exist. ;)

[quarterto]

The point for Facebook is that it's machine-readable targeting data without having to do NLP. The point for users is it's a way of providing context out-of-band. It definitely adds value to posts for Facebook.