Interesting, you got a link? In my dealings with BaFin they were rather open and capable (but slow to act).
"EARL: I phoned the whistleblower line there, and I said, do you speak English? Yes. Then as soon as I mentioned Wirecard, they then said, oh, actually, I don't speak very good English. Could you call back? Or then another time, the phone just went dead."
Which kind of confirms trowawaygh's spitballing.
Anyways, this specific short seller's account sounds more like its going to be part of a movie.