"so the guy is right, loads of kids thinks if they use f0rest res they'll be as better"
Changeing to a pros settings might be a smart move. At least when you are new.
Let's use two kids as an example. They both have the same hardware, not highend components, but good externals(mouse, monitor...).
One kid starts off with 6sensitivity, 1080 + all high settings(recommended), vertical sync, acceleration, rate 25000.
Another kid copies f0rests settings.
Who do you think will have a harder time improving?
So the guy is wrong calling everyone playing 1024 a gullible retard.