Every unit in Germany used to have loads of people with the badge but since the early 90s with Gulf 1, Bosnia, Kosovo, Afganisatan and Gulf 2 they have become very rare beasts. Mind you, it was always the case that the ones who did wear the badge were embarrassed into silence by people who could speak German properly that didn't.
Okay, I missed off the 'nearly', but you do get people off the course who think they are native speakers and many lads who married German girls, never done the course but spend every weekend talking with her family are many times better than the badge wearers and aren't restricted to dodgy phrases about tank transporters.
Quite often a 'Hey look at me," "I speak Bratwurst lingo" as opposed to what it was meant for i.e. in the days where translation was needed and a 'target' could be identified and asked to translate. I was always quite annoyed that these were given a badge for speaking a language but now my fluency in English is recognised by a Union flag on my left sleeve...........dead chuffed.