If that is the case, you will have no trouble citing 2 successful trolls in HN comments.
https://news.ycombinator.com/item?id=2534649
Google, Archive.org, and my best attempt at HNSearch API ( http://api.thriftdb.com/api.hnsearch.com/items?id=2534649... ) didn't tell me what was in https://news.ycombinator.com/item?id=2534649 either.
I did not see evidence of that in your 2 examples. Maybe if you indicate which participant(s) you consider the troll(s), . . .