I've lived in acronym city for nearly 20 years, and am usually quite good at nailing acronyms given the context in which they're used.
Barry Heilburg? Bottom Hair? Beer Hurl?
But I haven't a clue as to what "BH" stands for.
I even did a Wikipedia search on "BH" on it's article on Quasars, and couldn't find the "BH" acronym anywhere.
Zip. Zero. Zilch. Nada. Niets. Rien. Nichts. Τίποτα. Niente. 何も. 아무것. Ничего.
You know why that is?
Because the OP was SLOPPY in his/her OP, and failed to spell out their acronyms before posting the acronyms, that's why.
Take for example, the concept of "top dead center," or TDC (the immediately preceding words are an example of how to do it right - please take notice) as it's commonly referred to throughout the world of auto engine mechanics. It refers to the position of the crankshaft when the #1 piston reaches it's highest point. That's top dead center, a point in the rotation of the crankshaft where this happens, and it's actually marked on the crankshaft so that mechanics can use what's called a timing light to observe the advance/retard behavior of either a distributor cap or electronic timing functions through various revolutions per minute (RPM) regimes of the engine.
Hey! There's another one: "revolutions per minute (RPM)." (another example of how it should be done)
Key point: Spell it out, first, then put it's acronym in parentheses. Feel free to use it in it's acronym format after that.
Unless you do that, others will, quite possibly, not know what you're talking about, regardless of their IQs, levels of education, or areas of education.
It's not about snobbishness. It's about communication. It's simply the polite thing to do, such as taking a moment and holding the door open for someone immediately behind you.
So do it! Spell out your acronyms in your posts. Once you've done that, feel free to post your acronyms in that post (and in that post only) to your heart's content.
If you start a different thread, please assume that others have not read your first thread and take the time to do the same!