Voynichese is a numeric cipher?

[ololololo]

It is possible that there are not enough nulls at the moment, and they do not have any special rules for placement in the text (except for next to eor and or).
I was just thinking about it...

I think it's likely there are no nulls in the Voynich MS. If the set of glyphs was made from meaningful and null glyphs there likely will be obvious statistical differences between the two sets. As far as I know, no statistical test shows a clear separation of popular glyphs into two groups with different characteristics.

No one knows for sure.
There's something similar to nulls, like the same repeated ch. And either the author was very good at "gluing" them into the text, or he used existing characters from his alphabet as nulls.
Anyway, it makes sense for Voynichese to add these nulls. For example, f2v:
kooiin cheopchor otaiin odain chor dair shty
kchokchy sho shol qotcho loeees qoty chor daiin

From the perspective of my cipher, the first line is generally correct, starting with oiin (XVIII) and ending with a unit (y). The author may have assumed that if we looked at the unedited encrypted text, we would be able to see that the letters and words were arranged in a sequence, and we would be able to figure out the meaning of the sequence and decipher his great works. The introduction of such nulls (which are actually extra letters) allows you to mask words and blur the sequence (which you can see in my examples - the ch nulls give themselves away because they are not where they should be). 
I think that such meticulousness may be possible, given that we can't even decipher drawings, let alone text.
However, it is currently unknown whether Voynichese actually contains nulls, which are completely meaningless combinations (such as yt in my cipher, where y represents a unit at the beginning and t represents nothing).