Germans are a bit touchy on this. There are a bunch of two-letter or two-digit combinations you can’t have on your license plate, for example. Somemore far-fetched than others. At some place I recently heard about they use two-letter initials (extremely collision prone, but whatever), except for people like Nadja Schmidt.
It’s definitely silly, but otoh I guess all culture is silly…
I worked with a woman whose relatives didn't make it out of Auschwitz.
She objected to us initializing System Services.
Silly?