Hey there, I wonder if this article I wrote about the same concept would make it more clear? It's on medium, but free :) https://pelligra-s.medium.com/parse-dont-validate-in-kotlin-...

I honestly think the two arguments are different though. We could say that Postel's Maxim is about "how much you should parse/validate", while the problem we are addressing is rather "how you should do it" :)