The letter ‘K’ as a mark of origin?

[Stefan Wirtz_2]

[..]
Your question suggests that this should be some kind of substitution cipher.
Most people here assume that it CANNOT be a substitution cipher.

Most people here assume that the source language of VMS is Latin, Italian or some sort of German(ic). Being locked into this, they do not even notice that there was a bunch of other languages and writing systems in Europe and elsewhere, so

… is that it cannot be a substitution cipher. Especially since there are indeed some irregularities in the statistical analyses that clearly contradict this.
But I think that the fact that no one has cracked it yet is no proof of anything, and statistics are just statistics. It is common knowledge how easily certain little things can influence statistics. So...

Funny thing, simple brute force deciphering would have worked for substitution as well as for any clever enciphering - if the „experts“ with their computers had regarded ALL possible languages existing at VMS time. I am afraid they hadn‘t.

I think what the previous answers were trying to say, but clearly did not, which is typical for this forum,

Correct. But here you are contributing to that, aren‘t you?

No reply yet clearly remarked that there is no reason to assume by the transcription(!) letter ˋk´, which is not meant to be a ˋk´ or any other letter at all, suggests a letter ˋk´ in the text is represented by that transcription, or a ˋc´ or ˋm´ or ˋsch´ or anything. 
k DOES represent something: if it is a character, or syllable or a number - we don‘t know.