Not everybody lives in an area that requires a heavy lock. In 35 years of riding, I've probably locked up my bike 10-12 times total. There is a decent looking mtb near one of my ride starts that hasn't moved in a couple weeks and there are no houses nearby so it is amazing it hasn't been stolen yet but the people in my little farm town aren't really known to be desperadoes.

I joined the kickstarter and this lock may actually be overkill.