As a new writer, you have to pitch pubs. But for all those articles you spent time writing and you get rejected, it's nice to have them all in one place. If it's your own pub instead of self-published pieces, readers will get 3 articles below the one they are reading to keep them stay on your profile. Also, you can send them a weekly email from your pub if you don't have a website.

But your own pub isn't much of a use until you build a bigger audience.