Abusing the client-server model to kick players in-game is discouraged, with the sole exception of it being made clear to the player getting kicked and all other players in the game. If there is any complaint in connection to kicking tools from anyone on WormNET, the perpetrator has a high chance of getting banned without second thought.
In practice nobody has complained because normally such kicks are justified. However, that's where one might say, "use at your own risk".