Personally, I’d far rather be dead than have my life put in charge of any Debby who spells her name wiith an “i”.
In fact, it’s clear, on the basis of her name only, that Debby - with an “i” - should be placed in the hands of a public custodian.
Those "i's" are a pet peeve of mine, too.
It would appear that the name would have to be pronounced "Deb-eye". Could hardly be pronounced "Debby" because that version has been vacated.
So would I.
I wonder if Debi (note, only one “b”) ever drew a little heart for the dot on the “i.”