I'm checking to see if this Linh Nguyen that some random Discord user referenced me is the Linh in front of me on Zoom. A phone call isn't ideal, but it's still better than nothing. At the very least, there's one more identifying factor though that may help with spotting any scams, but yes, it can be false sense of security if you rely purely on it.

If I'm John Doe and I made some merge requests to your open source project for a couple of weeks, is that alone really enough to potentially meet me in some city far from yours? That's essentially what the author was prepared to do.

If Ms Linh Nguyen turns out to be a burly Nigerian dude on video, you just acquired some "useful" information about their legitimacy.

A deepfake requires significantly more effort than just impersonating someone over text.