Hi @andnovator,
Some people put [WINTERMOD] or something like that in their nametags to "warn" other players that they might behave differently in certain situations, like going around a curve at 20 kmh when you could normally do it with 50 kmh, or that they might take a lot longer to stop their truck completely, etc.
Every player can do this as they like, sometimes this nametag can help you to "minimize" the escalation of a certain situation, sometimes not.
I hope I was able to help you with your question!