Change Posts layout to be more intuitive
The current Posts layout looks like a Chat window and Teams also has chat functionality. This leads virtually every new user to go into the Posts section and attempt to reply to existing threads by using the New Conversations field at the bottom. I don't blame them since it's laid out like a chat app.
I propose that Posts be laid out more akin to a message board since that's what it actually is. Get rid of the new conversations field at the bottom and replace it with a button called 'New Topic' that opens the full formatter and increase the visibility of the 'Reply' button on existing topics.