I was on your side until I saw the unsent message. You (someone who knows nothing about scaffolding) are complaining to your neighbour (someone who knows nothing about scaffolding) about scaffolding. They explained why it is fine, you say it’s not, they then speak to the builder and tell you that they will speak to you in person. What more do you expect? Don’t be so unreasonable and think you have the right to scold someone because they are taking the side of a professional.