Proof for [i] and [n] equivalence?

[-Job-]

From your examples, do you feel that [n, in, iin, iiin] are likely to have substantially different values? Or even differing values depending on the word?

I think you can make a case for it, but i haven't formed an opinion.

For example, in You are not allowed to view links. Register or Login to view. (nicely covered by Brian Cham You are not allowed to view links. Register or Login to view.), 'Agrimonia' is written in this way:
   

Characters 'm', 'n' and 'i' are composed of the same stroke. The same could be true in the VM.

For comparison, here are all occurrences of 'iiin' and 'in':
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Another advantage of introducing additional characters (besides the entropy increase, which may not be substantial), is that the occurrence of 'iii' is more readily explained.