I wonder why even have a max line length limit in the first place? I.e. is this for a technical reason or just display related?
It's just sp hacky i cant belive it's a real life's solution
But I agree with sibling comment: it makes more sense when its called "encoding" instead of "inserting chars into original stream"
Digital communication is based on the postmen reading, transcribing and copying your letters. There is a reason why digital communication is treated differently then letters by the law and why the legally mandated secrecy for letters doesn't apply to emails.