i didn't find it hard to read, personally

perhaps the author is anti-capital-ist?

having an entire separate alphabet just to mark the start of sentences, and proper names, does seem extremely wasteful

on the microphone, it looks like quite a delicate process

i've modded some cheap aliexpress microphones (eg following https://audioimprov.com/AudioImprov/Mics/Entries/2015/12/20_...) but i'd want to see some measurements or reviews before embarking on something like this one