I expected to hear the standard "Crack Addict" or "Domestic Violence" lables. What I read on the site seemed a little gossipy, and tell all.
Although the use of Googlemaps with pins that say things like "White Trash With Loud Dogs: Beer bottles in the yard, trash strewn about, 12 year olds smoking on the front porch. These people are ridiculous" seems interesting.
I think if I was going to purchase a home I would check the map for bad whuffie.