It'd be helpful for you to spell out what exactly will be public. Even the simple fact that a so-and-so has a Triplebyte profile might be an unwelcome involuntary public disclosure to that person, if they're a current user who didn't read your email and fails to opt out. The (possibly unintended) lack of upfront clarity regarding what exactly will be public by default is also not helpful. Software engineers are probably more likely that other members of society to have strong opinions and expectations about their online privacy, and are probably more likely to be upset if they feel those expectations are violated.