The Quarreling Business Analysts are rarely seen, they don’t talk at conferences, they don’t write books and only one has a web site. They don’t even suggest that you will be a better BA if you listen to them. That’s up to you.
What they do have (besides a love of hearing themselves talk) is a lot of experience as Business Analysts and a willingness to share.
Not for everyone. Perhaps an acquired taste.
You decide.