That's fair from your perspective -- although the parent's question is what would subjectively satisfy me. I don't keep a log of such instances, and I don't see a way to view my vouched posts, but it is something I observe often enough.
Sure, but the reason that question is being raised is so that we can decide for ourselves how good your evidence is - both conceptually and concretely. It certainly doesn't mean you have to share it but it makes the discussion actually meaningful.
Does that link only show vouched items of some recency? The page is literally blank (minus header and footer) for me, but it's probably been a week or so since I vouched a comment.
edit: sorry, I missed the sibling comment to this. I only ever come across dead comments, not posts. So I needed to add &kind=comment to see vouched comments.
Ah, I meant comments rather than posts (and I think flagging posts has a different meaning since one cannot downvote posts) but it looks like comments are visible by adding `&kind=comment`. Anyway, the most recent comment I vouched is https://news.ycombinator.com/item?id=43530295 which I think is a good example of what I'm talking about.