Maybe what they are trying to say is that most everyday folks don’t use those terms in any normal conversation

Then say that and not that they’re “impenetrable jargon”, because saying what they said makes you come across as so stupid it’s unbelievable and wraps around to “too obvious”

I’ve never used those terms myself and haven’t heard them in any conversation I can recall outside of the Internet.

Yeah, because they’re not actually all that relevant to normal life, but online it’s far easier and simpler to put them out there so people can properly address you in the anonymous internet. Also being put into games and shit for representation, which is likely included in what the person was whinging about