There is a quote about feedback by Dr. Brene Brown: “Clear is kind.” 

It’s definitely true that by being clear about what problems you’re seeing, or how others might improve, you’re being kind in the way that you’re giving others the gift of a path towards improvement. 

This, however, doesn’t give one license to do it in a mean, aggressive way. 

Being clear might be kind, but being direct, approachable, clear, AND considerate is divine.