The "gallows" characters

[-Job-]

Well, who/what  defines what is still a readable word in general ?
And how on earth do you define that for the Voynese words ?

I tried such a thing before and have so many examples what can be replaced 
in a word and in a sentence, that almost ANYTHING is possible.

So probably I am missing something essential here, or anything can be replaced by anything, see below.
In the last case, we can generate many other numbers.

Your program that generated the "valid" replacements has one or more rules defined based on position or cohesion?
 or do you simply replace ANY given letter?

You seem to be completely misinterpreting the results i posted.

My analysis only shows that, relative to the sample texts used, the VM has higher character replaceability values.

How you account for this feature is up to you. It could be the result of extremely irregular spelling for example.