i can understand where team 3 were coming from, you were being a thorn in their side. however, if i'm not the game leader i would love to have more players like you to assist taking the leader down.
look at it this way - you were using chat to influence another team to gain an advantage. team 3 were also trying to influence another team's behaviour by calling you names however it didn't work on you and they each threw a tantrum.
technically you could report them but don't bother. simply FAMO.