Back in the day, ICQ's most unique feature that it offered was the "Live Chat" feature with split panes, where you could see what people were typing literally a

Back in the day, ICQ's most unique feature that it offered was the "Live Chat" feature with split panes, where you could see what people were typing literally as they typed it (including when they pressed backspace to correct mistakes). I don't understand why no other popular chat app has ever brought that feature back. It really gave the chats a sense of humanity and conversational connectedness. You could even rewind and play back the conversations!