We certainly ban accounts that post like you did against other groups. Here's an example from yesterday: https://news.ycombinator.com/item?id=47532748.

We need specific links, though. People always assume that we see the same posts they do—in fact we don't come close to seeing everything (even in the same thread) and rely on users to tell us about the worst comments.

https://hn.algolia.com/?dateRange=all&page=0&prefix=false&qu...