It stopped your program from working for over a year. It's forcing you to have to OS do unnecessary and possible unwanted work. It's definitely a necessity even though though it could be fudged this time.

Oh dear. You really do talk bollocks sometimes!

My "program" was a throw away attempt at something to which I already had (and posted) a simpler, better alternative.

What stopped that throw-away from working, for the whole 10 minutes I spent on it, had absolutely nothing to do with all your ballshit above about "having to manage your own buffers".

As I demonstrated, that is all completely unnecessary. You (and your mentor) just like doing things the hard way for some reason.