In the matter of seeming to be over qualified for a job, it's the attitude of employer and employee that's important. Teddy Roosevelt said something about walking softly and carrying a big stick. A little genuine humility can be good for the soul as well as the reputation.
At airline interviews one can be faced with the situation where a very experienced middle aged captain on a turbo prop has been applying for a position as first officer on a jet. You need to be able to assess that this applicant will transition well from left hand seat back to right hand without trying to impose his ego into the CRM ethos or into the process of interpreting and implementing the company Operations Manual. Then you've got to ask yourself whether a thirty year old jet captain can fly with an ex forces fifty year old prop dog. It's actually for the older man to make the bigger effort. He's the newcomer. The quiet self effacing applicant usually appears to do well in the transition process. The guy who tells you at length how he flew fast jets, perhaps less so.
lilflyboy262...2 is quite correct, levity is an inherent part of aerodynamics, however perhaps this one post slipped through the censor as being reasonably sincere.