Discussions not visible until you log in: anti-trolling measure? Will it be effe

I wonder why founder has made it so you can only see discussions after logging in. Is it an anti-trolling measure?

If so, I’m not sure it will discourage various forms of trolling and pot-stirring. I also worry that not being able to see discussions will discourage new voices that might be brilliant contributors. Some of those new posters might even (gasp!) want to discuss strip clubs!