High reach: When people join your email list (subscribe or “opt in”), you can reach them. If they just like your Facebook page, for example, it’s unlikely that they’d see many of your updates. Sure, not everyone opens your emails, but the numbers are heavily in favor of email marketing compared to other similar marketing tactics. I’d rather get 1,000 new email subscribers than 10,000 Twitter followers.
There are lots of ways to buy an email list, but none of them will actually benefit your campaign. Why? Since the owners of these email addresses didn't explicitly agree to receive content from you, there's no telling how interested they are -- or if they're even a fit for what you have to offer. A bought email list is also in violation of GDPR (we'll talk more about this in just a minute).
This article is by far one of the most interesting and fun articles that I have read in a long time. I say fun because the points mentioned here are simple and easy to read. They are not long passages that speak a lot and tends to lose focus. On the contrary the points mentioned here were in short crisp sentences that did not bore me but made my read a pleasurable one. Thanks!