Last December a startup called Buffer revealed their salaries and suddenly the word “transparency” was bouncing around the tech world. The response was “heartwarming,” COO Leo Widrich told me. But while some startups are emulating Buffer, the benefits of transparency can get a little foggy. The hope, he told the Journal, was that the open salaries would bring about a sense of fair play and help his team to have a better sense of what was going on in the company.