When there is unreasonable 'bagging' of an airline, yes someone will stand up and try to give a reason why those comments weren't reasonable. You know, they say "if you throw mud, some sticks" and this also applies to bagging of airlines, through a forum or anywhere else.
My gripe is when someone pays $1 for a flight and expects 100000kgs of baggage allowance, a 10 course degustation meal on board with complimenting wines and instant service by the crew with a wave of their magic wand. And the sad part is when they don't get all that, rant and rave and tell the whole wide world to never ever ever fly on that carrier again. Oh, and that's their first and only flight in the past ten years, and also last flight for the next ten.