This is an automated bot incorrectly claiming posts are dupe: https://news.ycombinator.com/threads?id=b16m
Looks like it was banned: https://news.ycombinator.com/item?id=46188453
How is it still posting?
Looks like it was banned: https://news.ycombinator.com/item?id=46188453
How is it still posting?
Banned accounts show up as [dead] as soon as they post, so most users don't see those comments, only those with showdead enabled. Commonly referred to as "shadowbanned" but usually operators also don't tell shadowbanned users they've been shadowbanned.