I agree about code reviews not being done "right", for my own subjective opinion of what a "right" code review is. I've been in situations where code review was

I agree about code reviews not being done "right", for my own subjective opinion of what a "right" code review is. I've been in situations where code review was required but effectively useless. Some would only focus on code style and completely miss obvious logic errors or lack of new tests. Some would blindly approve anything. Sometimes a manager would override a critical code review because a new feature had to be released urgently (and of course it turned out things were indeed bad later). Sometimes a one character bugfix would be blocked for an hour by the lack of code review.