well...it is well loved by us who enjoy memes. 1. Might be annoying if someone says it in real life, Which is not the case. 2, the silliness of the joke is the point. 3. the scene is Chandler talking to an extra dressed as a military in a movie set by where they live. so not even the character is being a douchebag to a supposed military. 4. thank you for service. But relax. it is a silly joke,
Over used? Yes. Well loved? Not as much as you think.
That joke hasn't been funny in three years