I'm confused as to why someone would want this instead of just going to HN directly? If you don't like Facebook, don't use it. :-/
Facebook events are invaluable to my life these days, but the news feed is an addiction that I've been fighting since university. If only I could be %100 dedicated to all resolutions without any effort then I wouldn't need any tricks like this.
Plus this is just meant to be silly. I should really just blank out the news feed like someone else suggested.
Edit: doing the trick like this, injecting HN into FB feels like injecting coffee into your veins - I don't think it will give you the effect you're after.
https://medium.com/@NikitaVoloboev/the-best-kind-of-web-3c91...