WordPress.org is now delivered over SSL. I saw an exchange between John Turner and Pippin Williamson that noted the change, visible as the default result in Google’s search engine results.
@johnturner No, it's new
— Pippinsplugins (@pippinsplugins) March 6, 2014
If you visit WordPress.org over Http, it won’t redirect you to Https yet, but Google is indexed that way, and I assume that eventually all visitors may get redirected.
Why is SSL important?
I really like the way Zack from The Theme Foundry described SSL and why it’s important when they announced their switch a couple of weeks ago:
An SSL connection encrypts all the data that is passed between your browser and our web server. This prevents someone from intercepting those communications. SSL is like two people talking in a private room. Unencrypted connections of the http variety are like talking in a crowded bar, where anyone on the network can listen in. As the web matures, and attacks get more sophisticated, SSL is becoming more and more important.