Author: Bruce Weinstein -- The Yelp Inc. application is displayed on an Apple Inc. iPhone in an arranged photograph taken in New York, U.S., on Friday, Feb. 5, 2016. Yelp Inc. is scheduled to report fourth-quarter earnings following the close of U.S. financial markets on February 8. Photographer: Chris Goodney/Bloomberg It’s not only would-be Harvard University students who are discovering how posting despicable comments online can harm their futures. A...