You obviously don't bother to read other posts...there are no obvious ones. I've even had people ask me, what is WDW? Simply put, don't shortcut your posts at everyone else's expense. Especially if you want readers to read or understand what you wrote...unless it's really not important.
Now if you are going to refer to Rock and Roller Coaster (RaRC) several times and clearly assign an anachronism to your first reference in the post then at least a reader can figure it out within the post. Or if the whole discussion is about Downtown Disney (DD), then sure feel free, but to simply throw an anachronism out in the middle of a thought, like HISTK or BTM, or IASW, or TTBAB or WOD (I'm sure you know them all), ruins what might have been an important point (if we only knew what was being referred to).
I'm not trying to be a smarta$$ here, but do you mean "assign an acronym?" :shrug: