Speaking about the Theodore Roosevelt "Man in the Arena" quote:
If you're going to show up and be seen, there is only one guarantee: you will get your ass kicked. If courage is a value that you hold, this is a consequence. You can't avoid it.
If you're not in the arena also getting your ass kicked, I'm not interested in your feedback. If you have constructive information to give me, let's do it. But if you're in the cheap seats not putting yourself on the line, just talking about how I can do it better, I'm in no way interested in your feedback.