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You're right about the definition of FTA in this context. But TFA means The F(ucking|ine|*) Article in this context.

I bet it's not a typo.

I always thought it was "the featured article" if you were being polite.

Yes, that's possible. Sorry, I checked if I'm wrong here: http://www.acronymfinder.com/TFA.html , but didn't find anything relevant.