NEW YORK — Oh, the things you learn on Facebook’s new search engine! Among them: that the hardware chain Home Depot wins the top ranking among employers of people who “like” sadomasochism; that a lot of people are not embarrassed to profess a “like” of Hitler, but only nine of them reside in Germany, including one man with an apparently Muslim name who claims to work for NASA; and that abortion is prominently labeled a disease, and more than 6,000 people “like” it anyway.