“An FAQ” really sets my grammar nerves jangling. “A FAQ” isn’t great either.

Maybe “FAQ on Reinforcement…” or “FAQ about Reinforcement…”

An honest mistake.

Why? You'd say it as "An Eff-AQ"

I'm guessing their issue isn't about the vowel, it's about the number mismatch between the singular article "an" and the plural noun phrase "frequently asked questions".

Unless you say it as "a fak"

"FAQs on Reinforcement..."?

ai slop