Ex-employees are your best (or worst) ambassadors. We’ve all heard of the creepy company that every ex-employee trashes. Or the sweatshop with career opportunities or the fun company that just doesn’t pay enough. The sources for almost all of these things are ex-employees. When people leave a company, they’re going to talk about it, and they’ll be a trusted source for anyone who trusts them. So it’s good to know what people will be saying about you in the future.