point out why you would tell someone to just increase his update rate without actually knowing what the underlying cause is.
No one here has told anyone to arbitrarily increase their simulation rates. Kunos is reacting to your hyperbole.
Surely saying that 48Hz is enough for everyone, without knowing what the underlying issue is, is just as offensive as retorting that statement with uncommon examples where 100Hz is justified? Aisde from racing games, street fighter fans would notice if their input was delayed due to a 48Hz sim instead of a refresh-rate sim. We can't make absolute statements in either direction without information.
Now, help nicely, and hopefully ic0de can tell us more about his simulation soon so we can find out why 120Hz 'feels' better than 60Hz to him.