In order to enable commenting, I had to install Disqus, which means I had to use a Tumblr theme compatible with Disqus, so, to make a long story short:
You can now comment on this blog!
Just scroll on top of each post, then click on the little heart on the right. It will give you the options to “like” the post, or add a comment.
Please, write in a tell me what you think!