 what the credentials are of the person who's vouching for you. They just care, is this person a US citizen, which they should be if you're listing them as a verifier. And are they credible? I mean, do they know you? Do they have a reasonable basis to say, yeah, this person's a standup guy or girl. They don't use drugs. They're not a risk of any sort. Those are the types of analyses that are hard to make when you don't really know somebody.