When you are writing the kind of criticism you hope you're writing, everything depends on keeping your calm or your cool. You're trying to tell someone about something that they may know nothing about. They depend on you to read or interpret as best as you can.
When you're writing fiction it's a heightened voice. You're trying to cast a spell, which isn't the same thing as trying to cast someone into it. You are creating a reality but it's a different sort of performance.
I think at the beginning of one's writing life, negative reviews are what one does to get attention and stake out your territory. It's also often a mistake.
