LOL @ NOOB
Haha, i am calling that guy noob!
Just because he doesn't know what a DOF screenshot is!
Anyhow, DOF stands for Depth Of Field, when you make a DOF screenshot (default = shift+ctrl+P), Blockland makes a lot of screenshot from different angles and then put them into one, which will make it look more 3-d by making everything outcentered blurry.
Or something like that.
Badspot explained it
here