antisocial acronyms

i wonder if it is simple oversight or if there is a substantial presence of elitism or esoteric cliqueism when it comes to the use of acronyms without establishing the root words. this first occurred to me when on ebay. there are many instances of “industry” acronyms being used by various individuals that are never defined in the descriptions. it was frustrating to me that this kind of “anti-social” behavior (at least at it’s root) would persist so prevalently on ebay and, eventually i would find, the internet.responsible use of acronyms in a social setting would be to define the root words at the first occurrence and then freely use the acronym from then on. otherwise a sense of separation, isolation, and elitism is insinuated whether that is the intention or not.