Keith couldn't make up his mind. When Hunter mentioned the CEO of LinkedIn blogs, Keith said it doesn't count because they're not a startup. But by definition

Keith couldn't make up his mind. When Hunter mentioned the CEO of LinkedIn blogs, Keith said it doesn't count because they're not a startup. But by definition, the "unicorn" companies are all more like LI than the average startup. Maybe the question is "at what point does a company cease to be a startup?" At a $1B valuation? Or a significant liquidity event?