Looking for SEO advice - unwanted traffic to old pages

Hi there. I’ve got a website on Ghost Pro at dylan.tweney.com. I’ve had a website at this URL for many years, and a few old pages are still generating traffic.

tl;dr: Can I delete a page that’s attracting traffic I don’t want without hurting my domain authority?

One of my old posts is this one, which I wrote about 5 years ago to demonstrate why email authentication was so urgently needed (I was working for an email authentication startup at the time): How to Fake an Email From Almost Anyone in Under 5 Minutes – dylan tweney

Because of the click-baity headline, I’ve been getting a lot of traffic, but it’s clear that it’s mostly from scammers who are Googling for ways to send more fake email, and Google sends them to this page.

Sometimes these visitors sign up for my newsletter, using suspicious-looking email addresses.

I don’t want this traffic and I don’t want these subscribers.

Here’s my question: If I delete this page (which presumably has good SEO), will that hurt the overall ranking of my site?

How can I get rid of this unwanted traffic without hurting my domain’s overall standing? However slight it may be, it is still something, right?

I’m looking for advice, please.

Thank you!

Hi @DylanT, I am not an expert in SEO, but what I would do I would replace a content inside the article and maybe place instead a message like “Sorry guys, the article is archived”