If you have showdead on and see a dead comment you think is worthwhile, you can click the "vouch" button to reanimate it. That may have happened in some of the

If you have showdead on and see a dead comment you think is worthwhile, you can click the "vouch" button to reanimate it. That may have happened in some of the cases you're seeing. IIRC, I vouched for https://news.ycombinator.com/item?id=13126780 https://news.ycombinator.com/item?id=13126780 after seeing your earlier comment.