I know there’s active chatter in this topic, but as we have just launched the new composer ( Introducing our new composer, making writing on Discourse easier than ever ), we want to encourage you to treat it like any other feature of Discourse — when you run into issues, please post in the Support or Bug categories, and feel free to suggest improvements in the Feature category.
I’m setting a timer for this topic to close in a few days, which should give ongoing conversations a chance to wrap up.