Pedantic side note maybe and sorry about that, but I found disturbing to see multiple "the TFA", where I guess TFA stand for "the fine article", so "the the fine article"?
If it’s about brevity, "the peg" is just as short and mean in journalism parlance "A topic of interest, such as an ongoing event or an anniversary, around which various features can be developed."
Everyone should be champion of some lost causes, not because their own have much chance to succeed, simply because otherwise they are all certain to never happen while in the first case, at scale, it’s almost guarantee that some will defeat the odds.
That said, "TFA" is ok, but "the TFA" seems even more extravagant than "PDF format"
If it’s about brevity, "the peg" is just as short and mean in journalism parlance "A topic of interest, such as an ongoing event or an anniversary, around which various features can be developed."