Re: Car exploit
So I looked it up and the bug is caused by abusing an ultimate. I initially thought this was happening in "Need for Speed", or another game with cars, due to the tittle.
The passengers can be hit, but the driver cannot be hurt, however if you use arc stars, you can damage the driver as well.
As mentioned by @OldTreeCreeper, naming and shaming is a rule to prevent people from being targeted, especially from false or incorrect accusations. While it "protects" rule breakers, its meant to keep players from harassing other players.