If you're looking to put the brakes on that, I've used LeechBlock to add a 5-second timer to opening a new HN window (along with other block schedules). The timer even fails if it loses focus, so it really helps slow you down.
I've made https://deja.de.hueve.ar/hn so it snapshots the frontpage once per day - that way, I now there won't be new updates during the rest of the day, and the dopamine addiction goes down.
To be fair, making a change (particularly changing a habit) takes time. Having something there to remind and nudge you helps make this easier, especially when you're tired, stressed, 'just looking for a short break', etc, etc.
It's like they say: "Your demons will comfort you when no one else will. That's why it's so hard to get rid of them"
Have you never suffered from habitual reflexes? I blocked twitter for a while in my hosts file and a dozen times over those first few days I instinctively opened a new tab and typed twitter in
We all admire your absolute mastery of your own habitual reflexes and mind. For the rest of us, there is a daily battle of wits, desires, weakness, and habit.
If I could snap my fingers and break toxic habits and patterns, I would have done so decades ago :)
https://www.proginosko.com/leechblock/