Apologies if the question was posed before, but after 15 minutes or so, this modern page is <<still>> loading, so I can't check.
I did manage to guess that this tiny three-line icon near the humongous topic header A) is not just a blob B) may actually show the list of topics (which in the "old" and "user unfriendly" discussions were simply and clearly listed, allowing easy navigation). Note: I wanted to mark the word "still" by adding bold, but is seems that it is not allowed / I can't find the proper tool/icon for it (so much for user-friendliness).
Back to the original question: huge headers, small icons, no list of topics, no easily accessible editing/formatting tools. These are my impression of the "improved" system. Call me grumpy, but - at the first sight - can't see any improvement.