What does Ctrip mean by selfless bathroom room defects?

Some rooms in hotels or homestays do not have separate bathrooms.

The defect of selfless bathroom room type refers to the fact that some rooms in the hotel or homestay do not have independent bathrooms. This means that guests staying in this room type need to share the public bathroom with other guests. The defect of unselfish bathroom room type causes guests to wait or share space with other strangers when using the bathroom, which is not very comfortable for some guests. In addition, the bathroom is not as convenient and private as the independent bathroom.