Line up and wait

Posted by Imaloserbabys@reddit | flying | View on Reddit | 89 comments

Why do people lineup and wait at non-tower airports. Just yesterday I was flying and I just took off and the plane behind me immediately got on the runway and declared that he was lining up and waiting. The airplane that was about to land had to do a 360 because this person was now sitting on the runway. My question is why do people do this?