It makes it easier for me to carry on conversations while also doing other things on my phone. If I'm reading something, and someone responds to a message, I ca

It makes it easier for me to carry on conversations while also doing other things on my phone. If I'm reading something, and someone responds to a message, I can quickly pop open the chat window and respond, then close it and go back to what I was doing. I find that more convenient than going back to the home screen and launching an app from there or the (rather slow) app switching process. Yes, sometimes it does get in the way of what I'm doing, and in those cases I just swipe the chat head down to the bottom of the screen and it goes away. And considering turning it off is one of the options in the first page of the settings, I'm not really understanding why it would make you furious or think this is user-hostile. Overall it's a pretty unimportant change that is easy to disable if you don't like it.