Add the option to turn Read receipt on and off. I don't want to know if someone read my messages because each person has his timeline of responding, some people take half a day to respond after reading due to many reasons; however i take it personal that they have read and not responded, especially to my pics, and i lose my patience. I don't want to know if they've seen my messages or not. That way it'll be easier for me to makeup an excuse for them for not responding and fool myself that they will soon ... insteaf of knowing that they're not interested 😗