Just recently, i woke up to this. An Aa button, as well as a little change in design. When i tried to make a comment with a line break ("---"), it just didn't render.
I don't know if any people notice, but reddit mobile is changing like every week. Moving stuff and changing stuff. Just yesterday i had a + button in my floor tool bar, now it is in the right up corner of a subreddit for some reason. I remember when my profile button was at the top and then they move it down. Or the messaging section that shares place weekly with notifications and them it goes separate and then it goes back and like that.
Most of that stuff didn't really bother me that much. It was annoying, yes, but atleast i could find my way around. This time i cannot, i cannot find how to go back to that text editor that allowed me to change stuff with text. And then if i didn't want to, just type a backlash.