It's not only LA, everything but USA, UK and a couple of other Europe countries is empty, I think that's because the kind of start-up mentality fits better in those areas, there are plenty of opportunities in other parts of the world, not to mention that many of job offers listed here allow remote applicants =). This is a better HN job listing though.
About the tool itself. Great work! It really helps saving us time when looking for opps within a certain region.