I don't think I have a particularly distinctive voice. But I once asked a question at a Q&A with a famous actor, the whole event went up on YouTube, but only the stage was on-camera, not the people in the Q&A line. Three years later, a friend of mine messages me "WAS THAT YOU asking a question about x to actor y at event z?" She'd randomly come across it on YouTube. Yup, it was. Blew me away.