"Early on" in HN history, posters would generally respect the "original title" mandate but upon occasion (1) would qualify it -- briefly, concisely -- with a few words in square brackets, e.g. [the "S" in "RSA"].
I don't know whether the mods still generally accept this, but I'd suggest it for such instances. And try not to intermingle bracketed qualifications within the title; appending them is generally better.
I'm not a mod, and I don't know whether this is (still) an accepted practice. So, just my suggestion.
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(1) when really helpful; not all nor anything approaching a majority of the time
I don't know whether the mods still generally accept this, but I'd suggest it for such instances. And try not to intermingle bracketed qualifications within the title; appending them is generally better.
I'm not a mod, and I don't know whether this is (still) an accepted practice. So, just my suggestion.
--
(1) when really helpful; not all nor anything approaching a majority of the time