He's trying to make people in a hurry think he's Sam Duboff. @duboff a former head of marketing at Medium who had a real publication called Welcome to Noteworthy: Spolighting Top Voices on Medium that profiled Medium authors & got them bigger followings a few years back. So it's a lookalike fraud of some kind. I suggest blocking him, I just did. Also, I didn't read all the many responses so you may already know this by now. If so, I apologize in advance.