First of all, a broom is a sweeping tool. Long-term contact with dirty things has its own symbol of impurity and bad luck. Therefore, we usually put it on the balcony, a place with sufficient righteousness, to eliminate its influence. If the janitor puts his broom at the door, just face to face with his door, which is not conducive to his feng shui, it will not only bring dirty air into the home, but also bring bad luck.
Secondly, it may be related to the personal habits of neighbors. Some people may like to put a broom at the door, but if it doesn't affect your life, the subject can also choose tolerance. If you feel that it has affected your life, you can take some measures to reduce the impact. For example, close the door to avoid airflow, or hang a long curtain on the door, which can not only increase the appearance, but also solve the problem of facing the door. If these methods have no effect, it is recommended to seek the help of the property.
The above is only based on the behavior of neighbors putting brooms at the door, which does not represent the real situation. It is suggested that the subjects communicate with their neighbors to understand the reasons and understand each other.