( CNN ) -- If your coach airline seat is uncomfortable , it 's your fault . That 's the gist of one of hundreds of responses to a CNN.com report about airline seat comfort , configuration and cost . Coach fliers may complain about airline seats , but U.S. airlines are filling those seats pretty successfully . A commenter called withReason7 suggests that consumers are getting what they ask for . `` I will continue to blame the passengers that will sit in any crappy seat as long as it 's a little bit cheaper . THAT IS WHY THE AIRLINES ARE DOING THIS . Not because they are mean , because that is what MOST travelers want ... '' In the report , a top body measurement expert says Americans are getting bigger , and seat-makers have been basing their designs on the wrong body parts . A seat maker says the industry simply builds what the airlines want . An airline spokesman says passengers are more interested in cost rather than comfort . Have you seen the new numbers for airline passenger traffic ? Cha-CHING ! From the looks of it , seems like carriers are n't having any trouble selling seats , even if they are less than royal thrones . U.S. airlines hauled 53.1 million passengers in February . That 's an increase of 6.1 % over traffic in February 2011 and 9 % above the same month in 2010 , according to the U.S. government . But the numbers also show that airline profits are down a bit , probably due to higher fuel prices , according to the Los Angeles Times . Commenter Rick1948 says airlines have some work to do . `` The domestic airlines need to get back into the customer service business . Spread the seats out , get rid of the flight attendants with an attitude or have behinds wider than the drink cart , trash the toy airliners and get the real ones back , and start serving real food again . Then , charge whatever you need to so you can make a REASONABLE profit . Those who can afford to fly - will - and those who ca n't - wo n't . Then , at least flying wo n't approximate the pain of a root canal any more . '' Are there any new ideas out there that can spread some sunshine among grumpy fliers ? Johnkc suggests bringing in Uncle Sam . `` Sometimes , we need the government to save us from ourselves . There should be a mandated minimum width of seats and legroom . Do you really think it is safe with all those people packed in like sardines ? We needed the government to mandate auto safety , and should have the same on airlines so that everyone is reasonably comfortable and safe in flying . I am not a fat person , but the way they jam us on airplanes , it is just not fun to fly anymore . '' Speaking of the government , Washington is predicting a slight dip in domestic passenger traffic this year , before it starts to rise again in a steep slope that will ultimately see air travel nearly double during the next 20 years . Hopefully , passenger size and weight wo n't be doubling . America 's battle with weight is bleeding over into airline cabins . Commenter razorback10 , who wanted to do the right thing , was faced with a difficult choice . `` I flew this last weekend . I am overweight and so looked at the website to see if there was anything I needed to do . It recommended buying two tickets , so I did in the section with extra legroom . Get to my seat and it turns out I do n't need the seatbelt extension , I was suprised and informed the stew that I had purchased the 2nd seat so they would n't be looking for the person who was n't showing . The flight is full and there is a waitlist . They actually bring a guy on the plane to ask if I was willing to give my 2nd seat up for him . I politely said no , nodded at him and resumed reading my book . I was terrified of flying because of the bigotry , I sure as hell was n't going to give up the extra seat I paid for so some guy to take it and then likely complain later . '' It 's hard to know whether commenter GBGentleman was being serious or facetious when he suggested this : . `` I think they should charge fares based on weight . You and your luggage get on a scale when you get to the airport . You get a refund or have to pay more compared to the 'average ' price you paid . I weigh significantly less than the 'average ' American so why should I supplant the cost of flying those who are larger than I am ? Want to save money LOSE weight . '' Of course , frustration is n't the only emotion travel inspires . Otherwise , why would we do it ? We want to hear about your greatest travel moments , whether serendipitous or carefully planned . What sticks out to you as your biggest travel success ? Share your stories below .
CNN.com commenters weigh in on the airline controversy . Americans are getting bigger ; airlines are not . One commentator calls for government regulation . Another commenter says airlines should pay by passenger number .