To me it seems to perfectly outline HN's reputation when moderation is delayed. This brigading has been happening on multiple projects for years, specifically by the actors mentioned in the link, but plenty of others as well.

If anything, this specific behaviour and these actors have been outlined by articles dedicated to just that, right here on this sited. Granted, other sites are often lumped in here as well, such as reddit and even stackoverflow. This is not new behaviour, it happens in all communities. The big differences between them all is to what degree they get abused and in what manner.

As for examples: I doubt people who are targeted will want to share their experience with anyone directly. Someone asking for it to stop should be enough.