I was coming at it from an average consumer standpoint, some of the audio terminology and descriptions would be hard for say…my father, who’s not used to audiophile writing. For me, it flowed really well.
Yeah, I see what you mean – that's definitely a thing. I would say though, that just below the surface of most hobbies/groups/tech/disciplines, what you invariably have to contend with is learning object/system-centric jargon.
Is it gatekeeping? Nah. Or maybe, but its kind of inevitable.
Once you get past a certain price point (or subtlety/specialisation) for an object or service, the writers of publications around it give themselves premptive license to appeal directly to the assumed knowledge-set of the demographic most likely to buy it (or read about it).
So its understandable that Head-fi/Hi-fi centric publications use jargon because the target demographic expect it – even demand it, but broader, consumer-level publications (like say if Forbes does a hi-fi headphone review) parse it greatly, generalize in broader terms or omit it completely.
Jargon and Qualia-heavy writing asserts and morphs itself in hifi/head-fi more than most because of the subjective and comparitive nature of it (way outside of the nuts and bolts specs, materials and cost.) It's similar but much worse with say, Frag-heads (Frangrance collectors).
Does that extend itself so much as to be considered literary writing? It might - you're often trying to describe something close to ineffable, so you're forced to broaden your descriptive vocabulary a bit.
(The problem is how that subjectivity and jargon can be weaponized - it can morph into Literary
Fiction; snake oil pervades a lot of hifi marketing and becomes memetic in the community.)
That being said, in (reporting, news) journalism as I understand it, you're trained to do the reverse; pressume the reader knows nothing and then work from there (few to no subjective descriptors, use "K.I.S.S", employ the most basic functional vocab level, few synonyms, low word count etc) so that even the youngest (or oldest, or non-native) reader with the least amount of familiarity can get a general understanding of an otherwise complex, multi-faceted issue.
Or at least that's what I've noticed, maybe incorrectly.