WordPress.com blogs are now offering visitors the option to sign in with their Facebook and Twitter account to leave comments. Users still also have the option to leave a “Guest” comment without logging in or to leave comments as a WordPress user.
The new option is meant to provide a much more robust commenting system for users, even if they are already logged into their WordPress account.
The new system means users can be logged into their Facebook and WordPress accounts but then still choose to comment via Twitter credentials, allowing for more flexibility based off each website the user visits.
