Fun with Renderglow

The other day I heard about a cool new feature that makes the light sources around you glow, but finally only got around to trying it out this morning. Its actually very cool , you get to it by going to your client menu >Debug settings>Typing in Renderglow>making it "True". It then makes a kind of soft fuzzy light around anything you have set to full bright and other light sources, I'm using it in the first picture there and not using it in the second.