I did not presume anything. You only have to look at prior HN posts to see how it is reproducible in 3 hours, one definition of easy. Note that my comment pert

I did not presume anything. You only have to look at prior HN posts to see how it is reproducible in 3 hours, one definition of easy. Note that my comment pertained to innovation, not usefulness. I don't doubt that there is a market for visitor.js. However, I am 100% sure that it is not innovative.