Originally Posted by
MetalPedaler
I really get disgusted when I see some prisses obsessing over a few millimeters. It's so ridiculous. I'd bet even the pros don't do that- it's likely the sole province of wannabes who have been heavily propagandized by bicycle industry marketing and others who want their money...and probably does more to spoil their riding experience, than to improve it.
I have dealt with elite racers who were quite fussy and adjusted their saddle height with a meter stick, getting as close to the mm measurement as they could. I have heard more than one of them say the bike didn't feel right, then when the meter stick came out the seat was 3 or 5mm too low.
The rest of your post is true - the mm don't matter to normal people, and having your saddle or bars less than ~1cm misadjusted is unlikely to be noticed and even less likely to cause problems