In the DA autoloader context, I think “traditional” evolved to refer to such weapons as the Walther PP-series, which established the mainstream acceptance of this type of action, followed by other Walthers, then Berettas, the S&W 39/59, etc. Of course, there have always been outlier pistols, even pre-WW2, which defy simple categorization. There is no short, concise menu of acronyms or short-hand terms that can satisfy everyone.
For that matter, folks on forums can argue endlessly, about the very definition of “double-action.” Col. Jeff Cooper used “trigger-cocking,” and if we combine that with John Farnam’s “self-decocking,” we could eliminate much confusion, but would have to type a lot more characters.
Anyone for “TC,SD” as short-hand for Trigger-Cocking, Self-Decocking?