I very much agree with you and my other comments in this thread are very much advocating for this position. I'd just like to add an important caveat by saying anecdotally in multiple occasions I've seen friends (notably people who are just moving in to the Valley from elsewhere and/or right out of college) tend to widely underestimate the "realistic" estimation in your advice (they know in abstract that salaries are "high" but don't necessarily concretely know how high), and therefore following it can be dangerous and would mean lowballing themselves. Hence, not saying anything might result in a better net result end of the day.