Earlier quoted context omitted.
Yeah I saw that and thought, ok maybe if you are on of the known or maintain a popular open source package, a conference speaker. But 250k in year 5 is not a number that rings true. Or, maybe I am doing something wrong here and am underpaid...
Are you a senior engineer? Are you at a large company in a metropolitan area? Is your salary less than $250k? If you answered yes to all three, yes, you are probably underpaid. That doesn't mean you're doing something wrong if you love your job, but know that you could earn more.
Lead, architect, principal... they may not hang up but I would expect a double take and a "let's be realistic."