That is total rubbish, Gone are the days when at an interview you are asked to stand on the scales before you even get an interview. Being crew is very different from even 10 years ago. I have been with my current airline for 3 years and not once have I been weighed nor do I know anyone who has been pulled up for their weight. Personality is the key that is what people look for these days. Don't be disheartend by mindless comments, it's the same as any job, you can only try and see how you go... Best of luck