OT: I believe my reply was modded for the same reason https://news.ycombinator.com/item?id=13139991 https://news.ycombinator.com/item?id=13139991 was flagged?

OT: I believe my reply was modded for the same reason https://news.ycombinator.com/item?id=13139991 https://news.ycombinator.com/item?id=13139991 was flagged? However, I provided citations (which I thought made the bar for substantiveness) and believed I was civil. Was I inciting flames by backing up the parent's comment?