I really hate any popup that pesters me for my email address. I'm already reading your article, I don't want you to email it to me. What is it about email news

I really hate any popup that pesters me for my email address. I'm already reading your article, I don't want you to email it to me. What is it about email newsletters that gives companies such a boner? Do they actually work? They annoy the hell out of me. I switched coffee company because the previous one had a popup asking for newsletter signup on every visit, and it was annoying difficult to get out of on a mobile screen when I was trying to order coffee beans. And worse, I was already signed up to the newsletter!