This post is an obvious victim of upvote manipulation. HN should ban the forgecode domain if it's going to abuse submissions like this.
But this just goes to show how futile – indeed counter-productive – this kind of activity is. These votes are easily detected and were ignored, and the submission had enough legit upvotes to make it onto the front page organically. We've penalized the users involved and the domain, as we can't let this kind of attempted abuse go without any consequence.
But also, public callouts like this are against the guidelines and we ask that people let us know via email at hn@ycombinator.com. This allows us to know about it sooner and investigate it thoroughly before making a public comment about it.