Caymanair, I think quite a lot of those comments come from the "I've flown one sector on Ryanair/Southwest/Whatever, so I'm the ultimate aviation expert"-crowd...
... and some of it, especially the posts that explicitly criticise AF
because it's French, comes from the "they were against us in Iraq"-crowd... the "Freedom Fries"-crowd, that is...
But some comments will also be from people who have actually flown on AF
, but simply had a bad experience with them: it happens on just about every airline - you'll always have lot's of people either loving or hating an airline, and few somewhere in the middle saying "they're ok - nothing extremely good, no major screwups...".
That's just the way it is - and the same applies to LH
, ... as well as Airbus, Boeing, McDD, ...