Why to send a “Guest contributors” requests?

How HubSpot gained 160,000 readers in 7 months. You can do it too.
HubSpot‘s team decided to test posting articles on Medium.
Here‘s what they found out…

1. They gained 160,000 readers in 7 months.
2. 89.7% of their readers were new.

Here’s the best part.
3. Automated guest contributions generate the most traffic.

Here‘s how it works:
1. Some time after you write a new article you receive a “Guest contribution” request by email.
2. You hit “Accept request” and voila – your post gets promoted among new followers.

Why do “big names” with big number of followers send these “Guest contributors” requests?
1. It‘s easy for them to look for awesome content, by looking at the number of recommendations.
2. It‘s easy to invite an author – they just hit one button “Send Guest contributors request”.
3. It‘s easy to publish an article. No need to edit it, change formatting – it‘s already formatted for Medium.