I came up with this gang chat option idea which would be very helpful and usefull if applied:
1- Gang Chat Options (shown in images)
2- Slow Mode: by this, you can reduce spam by letting members pm each 30 seconds (for ex) [max is 59secs] (shown in images)
3- Mute a member: an extra option on a members profile when you tap “More Actions” which allows you to mute a member so he / she wont be able to talk over gang chat unless you unmute that member.
Images