For Wilder, an image is certainly part of it. Maybe on some level he thinks he is exuding something by looking unbridled and reckless. It is just bad form and a fighter with his wits and a good punch could lay him out.
We'll see.
Fury vs Wilder was fun. I watched it in a bar. In Canada, boxing isn't as big as MMA. I was impressed by the interest.
His fundamentals aren't bad, as you can see here: