What does "BS warning" mean?

Question

In a recent mail, I saw a phrase "BS warning". Although this mail is in Emacs's mailing list, I don't think this phrase it's Emacs-specific.

I've searched the web, but didn't get anything that looked relevant. Any ideas?

Answer 1

I the context of the linked email, it means the the warnings are not real, that they can (and should) be disregarded.