How can I allow users to subscribe?

In the general settings of your wordpress dashboard, you can allow your visitors to subscribe and to comment.

How do we do that?

Go to wordpress dashboard>general settings>General

Flag 'Anyone can register'. And assign role. In this case Subscriber. If necesary you can level members up in the user menu of your wordpress.

You can also allow members or visitors to comment under certain conditions

Go to wordpress dashboard>general settings>Discussion

The screen looks like this.

Make sure to stay in command of the comments and save your sheet.

Tip

Always save.