Post formats problem is the UIX, is not easy ot understand how to use them with just a radio button. Simple example, Post Format - Image, the image should go as a featured image or inside the editor?.

I think post format is usefull, and a powerfull feature for any kind of content creator, can simplifies pusblishing of short ideas with Status or simple share an image or share a Quote in a cool way (design).

Maybe is good idea this feature becaue a plugni until the UIX get more attention and really makes easy to understand how they work and how to use them form the dashboard while in the frontend is much more easy to see the difference between them.