farrockgrandma: You are absolutely correct. A gut shabbos greeting is just good manners.
wolf: You are frightening. Find yourslf a good psychiatrist asap.
pba: You are from a friendly, out of town community. You can’t possibly agree that saying gut shabbos is anything more than a perfunctory greeting, and is appropriate most anywhere except Brooklyn, where no one greets anyone nicely or wishes anyone well.