Given the association of "screeching" with "screeching harpy" and the use of "harpy" to mean a nasty or annoying woman (including in Shakespeare: https://en.wikipedia.org/wiki/Harpy#Linguistic_use_and_appli...), it’s fair to say that it was common, and that there’s a likely function of age.

Men aren’t called "screeching" if they are annoying. Women often are.

- Two years ago on YouTube: "Screeching Leftist Harpy - She's On Crack Cocaine Watch Out!" (https://www.youtube.com/watch?v=-k3ikzwJ2jE) - Seven years ago on Reddit (r/hittablefaces): "This screeching harpy" (https://www.reddit.com/r/hittableFaces/comments/40sc0i/this_...) - One year ago on Reddit (r/justnomil): "Screeching harpy wants to 'help'" (https://www.reddit.com/r/JUSTNOMIL/comments/mst45y/screechin...) - One year ago on YouTube: Screeching harpy karen (https://www.youtube.com/watch?v=mZ0fskpB9jw)

> It also seems pretty arrogant to assert you know better than everyone else.

I did not assert that. I made a correction, which was in fact correct.

The meaning does exist, and commonly, even if in regions you are unfamiliar with. I did not misuse the word common. I think you just emotionally reacted to being called arrogant, when in fact it was a merited criticism.