My issue with it is it's not an acronym really, I mean how is that a mouthful, saying Bsb and wsb make it sound like some niche of porn
I wholeheartedly agree.
They are not acronyms, they are proof of lazyness.
If they are so dang hard to type out, put them in something like text-expander and have that do all that heavy typing for you.
Naturally, that will take away the "in-crowd" feeling and render you a mere mortal though...