You can read quite a bit online now on the B21.
You are correct about the thread.
I just like to read knowledgeable posts when it comes to aviation, missiles, and ships/submarines when the threads about them are good.
I’m not sure but I think Mariner is one of those who sometimes has good comments on navy subjects and missiles that I like to read.
Since these areas don’t interest me much I like to read other’s opinions who have a keen interest in them and keep up to date about them and often experience with them.