I wrote a GPT for that! https://chat.openai.com/g/g-3V1JcLD92-dejargonizer (Notes on how that works are here: https://simonwillison.net/2023/Nov/15/gpts/#dejargonizer)

I fed it that comment and it said:

> FMA: This acronym can have several meanings, but in this context, it likely stands for "First Mover Advantage." This business term refers to the benefits gained by a company that is the first to enter a new market or develop a new product or technology.

first mover advantage, probably

Yeah. Not a standard abbreviation but thought it might be understood from context.