As of today, the 80 character title line is live on the Auctiva site, and will be activated when eBay activates the 80 character title line on their site.
When you block a person, they can no longer invite you to a private message or post to your profile wall. Replies and comments they make will be collapsed/hidden by default. Finally, you'll never receive email notifications about content they create or likes they designate for your content.
Note: if you proceed, you will no longer be following .