I use the word 'Certainly' a lot...not the rest of the stuff though. Feeling a bit self conscious about that now...
Interjection! Polite confirmation or denial of request. Apologize for prior mistakes if prompt included correction to prior output.
Its all very formulaic for something that is supposed to be generative. Its like they all spend some time training at Ditchley Park.That would be a bit silly in this particular case, but in general we ought to celebrate cases where somebody has authentically done something that millions of others find it useful to copy.