Go ahead and give every engineer who comes across your meta-delimited file a little rundown on how it works. "Can you show me how to import it into google sheets?" "I need to email it to someone, can you show me how to change it?" "My IDE says I need a plugin to read it? Do you know anything about that? Can you help me set it up?"

They'll all agree how clever and useful the meta characters are of course, but only after you've given them your time in learning about it. No thanks no thanks no thanks. For me I'd rather deal with a little bit of serialization headache then a support headache.

...and this is why we can't have nice things.