Gypsy,
The polemic about low cost carriers springs from fear - fear of losing your job in these uncertain times.
By maligning these airlines and being childishly rude to their pilots "You are at the bottom of a large barrel" etc., some ( emphasize the "some" please) people try to reinforce their confidence.
What really sticks in their throats is the fact that there are actually pilots who have a pride in identifying with easyJet and are prepared to lay out sensible reasons for this. In reply not a even nodding acknowledgement to the arguments is shown, but scorn and rudeness, thus actually showing no one up but the authors.