I'd have to agree with TP's assessment. Only I would have said it like this..."dude, you have no idea what you're talking about". Anyone with an CPL can calculate performance...just because you open the QRH more than airline pilots do doesn't make you special.
Yeah, I can see how Emirates provides MANDATORY hypoxia training, high altitude upset recovery, extensive icing training, plus extensive scenario based training. Yup, I can see how I am not qualified!!