-1
People just need to obey the rules, just report them.
This is a controversial topic due to the range. Some of you suggested +25 or 30. The range depends on your computer. I get a solid FPS with 100 people at the same radius. Also, FPS is affected by so many other aspects of this game. This can be from other additions to the trucks as well. Another option is that if you avoid heavily populated areas, you won't lag.