It is popular for three reasons IMHO.
Because B1 does not police his own journal (This is a journal, remember? LOL!) and keep it tidy...
Because he does not police his own posts, one thing leads to another and you get nested threads within nested threads in a journal that spiral down out of control, and...
Because a thread like this naturally draws in folks who are bored and have no other place to spew about the various goings on of trading.
I do see many people posting (or attempting to post) real-time calls in here, and that adds a ton of traffic. Think of this particular journal as a static chatroom? Maybe? I think?