David.Boettcher
Established
I'm sticking to my theory that they were more or less random.
Regards, David
It may be unjustified stereotyping, but I find it difficult to believe that Germans would do anything at random - they are far too organised for that. In "Three men on the bummel" in about 1900 Jerome K Jerome describes the German love of order in chapter 7 - here is an excerpt:
On a certain fixed date in the autumn the German stakes his flowers and bushes to the earth, and covers them with Chinese matting; and on a certain fixed date in the spring he uncovers them, and stands them up again. If it happens to be an exceptionally fine autumn, or an exceptionally late spring, so much the worse for the unfortunate vegetable. No true German would allow his arrangements to be interfered with by so unruly a thing as the solar system.
And there is much more in this vein - you can read it here: http://www.literaturecollection.com/a/jerome/three-men-bummel/7/
Such an organised people would never even think of generating their five letter codes at random . . .
Regards - David