Why are you accusing him of saying "bobo". He didn't say it? And if his words annoy you, consider doing /ignore. We take insults that are directed to the family, or prohibited words such as f a g seriously and punish the player severely, however minor insult like what myth said is not that bad I mean, Please report if he continously harasses you or speaks in a prohibited way, that way we can punish him.
Complaint dismissed.