If algorithmic feed is so bad then why are you on hacker news, a website with an algorithmic feed that is notoriously non-transparent and often accused of being manipulated by bad actors?

Because obviously "algorithmic" is an oversimplification. Even a chronological feed is "algorithmic".

What needs banning is the combination of "behavioral personalization + infinite content/scroll". HN's feed has neither of these elements.

I assume they mean personalized algorithms and not algorithms in general as that would encompas literally anything programmed not based on true RNG. And to my knowledge HN doesn't have any personalized feed.

"If smoking is so bad then why are you smoking?"

Because I'm addicted like everyone else.

Go to your account page, turn on noprocrast and set minaway to a very large number. You effectively ban your own account once you click confirm. Now set up home firewall / device blocking settings and block the HN domain. The first step towards overcoming addiction is admitting that you have one. I pray for your speedy recovery.