Better WhatsApp Group Chat

Group chat is widely used in WhatsApp. As the size of the group gets bigger, communication is dominated by few people who usually generate a lot of noise. I had to leave groups because I was fed up with the endless nonesense of these few people. Arguing with them makes matters worse. Almost everyone I know has similar experiences.

I can silence a whole group in WhatsApp so that I do not get notifications. What I need is the ability to mark people in a group as important and unimportant. Messages from people that I mark important should be easy to spot when I scroll through the messages. They could have yellow background and bold font. Messages from people I mark as unimportant should be shown collapsed and become only visible in full when I click on the message. That would allow me to quickly see important messages.