Very doubtful that it is, you see one of these written about every 3-4 months.  Of course it causes an uproar and gets clicks because of the "Privacy Vs. Fat Shaming" argument.  I rarely fly, maybe been on one plane in the last 10 years.  But the next time I do, I will be damn sure to text everyone in my contact list about the fat fuck who will be sitting on either side of me.