Variables:
    {spam.%player%} = false
On chat:
    if player don't have permission "czat.spam":
        if {wait.%player%} is false:
            set {wait.%player%} to true
            wait 3 second
            set {wait.%player%} to false
        else:
            cancel event
            send "&cPoczekaj chwileczke zanim cos znow napiszesz!"