Hi, I fully understand what you are saying, but you should first try to understand that the player may simply like to play all these games in the rooms where he is logged in, and in order not to lose his seat due to the fact that you mentioned when the room reaches more than 120 players, he leaves himself the nick there.
This has also come to my mind many times, but the 1º thing that worried me the most was realizing if I was breaking the flyordie rules by committing this behavior and after reading and reviewing them better, I found that there is no prohibition in this regard.
Good luck and have fun
Dav7d