words are spelt

Words are not fish! /s

Spellings can help people understand a word they don’t know in some cases. This is especially true for Latin and Greek words in the language.

and pronounced

OK, whose pronunciation will it be? India probably turns out the most programmers who speak English these days, so enjoy your new spellings and entire new sounds and distinctions that don’t exist in your variety of English if it’s not that one already

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Efficiency is also not always the goal, nor should it be. I also know a lot of software engineers whose ideas I wouldn’t trust running my kitchen let alone my language. You would, as other posters point out, probably be interested in conlangs.