I was harrassed by the same group of people. They use variations of names and unfortunately they don't show up in the chat list so that I can ban them. They even joked about that fact when I tried. Somehow they are spamming the system and I, for one, am moving my show and my audience to another channel. I run a PG show for kids and they can't be exposed to this or I will have upset parents.
Sorry, Livestream...you gotta fix this or you will lose more people.