DITHF - is usually used now as an admonition to be suspicious or not so impressed or gullible regarding someone's claims. It is a reference to a FReeper using the screen name "Deep In The Hurtgen Forest". DITHF presented himself as a serviceman stationed in Germany, and posted many in-the-know "letters to home" type writings that were quite convincing. Eventually, though, due to some observant FReepers, some inconsistencies were noticed and revealed and DITHF was exposed (and, as I recall, confessed) as fake.