“You replies are uneducated. Which is to be expected from a FIB.”
Uh, that would be YOUR replies, not YOU replies, as the word “replies” would require the possessive form. Also, when you apply an article to an initialism, that article must conform to the SOUND of the first letter of that initialism, not to the letter itself. Since the initial F takes the sound “eff,” which is a vowel sound, it would be preceded by the article “an,” not the article “a.”
Finally, to be grammatically correct, there should only be one sentence, and that should be what is known as a complex sentence, separated by a comma or a semi-colon.
So, cretin, the correct sentence would be: YOUR replies are uneducated, which is to be expected from AN FIB.
OK FIB.
Some think they are so brave behind their keyboard.