It is common in today's communication to use acronyms. However, they are most unfriendly to persons new to the industry, new to the hobby, or new to the English language.
acronym: a word formed from the initial letters or groups of letters of words
Not to pick on them, but to give you an example. There is a discussion topic for Nancy Erickson/FSG Patterns & Newsletter 6. I like to explore independent pattern designers, so I went to read their discussion. After a bit of reading, I still did not know what FSG stood for, so I quit reading.
There could be someone who really needs and wants to learn about the Full Bust Adjustment, but no idea what FBA means.
Communication is only effective when people get your message. From now on, I will be more aware when I start to type an acronym. If you do use one, it is important to add a footnote to explain it's meaning or include the full phrase in your first use of it.