Complex sentence: Forsen is known to have a young viewerbase on Twitch.tv and had his stream banned on many occasions because of users in his stream posting racist, misogynistic or other prejudices in his chatroom which is against Twitch.tv's community guidelines.
Split into simpler sentences: Forsen is known to have a young viewerbase on Twitch.tv. Forsen has had his stream banned on many occasions because of users in his stream posting racist, misogynistic or other prejudices in his chatroom which is against Twitch.tv's community guidelines.