Unfair Intro

There should be a upper limit including level 30 players playing Intro. At times they can be very rude, ordering players and threatening them with being reported ; then demeaning them as 'noobs". It is unfair that they be able to play in that mode. They have level 30 runes and mastery allowing them to get and steal kills. I mentioned this several times and one response was he was there for gold; another just to get all the kills.