When a reply is made to a comment, a twitter notification (@twittername) will be sent to the original comment author to notify him/her of the reply. The notification will be sent from your Twitteraccount.
This will allow the users to follow up on the comment and expand the conversation if desired.
Is it possible to let the commenters decide if they want the notification
In this version all commenters will receive the notification. In the next version it will be possible to check a checkbox to get the notification.
Why do I need a twitter account to use this plugin?
You need a twitter account to make this plugin work because the plugin needs a place to send the notifications from. If you don’t want to clutter your twitteraccount with these replies, make a new twitter account specifically for this purpose.