Transliteration and interpretation issues

[ReneZ]

it has been in the context of computational attacks, an environment in which a high proportion of researchers ASSUME "e" is a vowel

I am not aware of any examples of this in computational attacks. However, it may be the case for 'interpretative' analyses, which is why I put this in the subject of this post.

But should d and y be interpreted as a number?
Essentially all other transliteration alphabets use 8 or 9 for this.

v101 uses 1 for ch and 2 for Sh ...

etc etc