- A player has made a mistake that caused the team to either die or lose.
- A player totally does not have teamwork.
- An unexperienced player plays in public matches that does not suit the level the other teammates are in or plays the game with no standard. These players are often called "noobs".
- A player randomly scolds their teammates when nothing wrong has been done.
However, there are some players that are forgiving or friendly, and I have no idea how they control their temper so well. But remember, it's just a game. You won't die in real life just because you lost a Dota 2 match.