This unwelcome new "feature" isn't working -- this is the business of forcing the user to login to WordPress to comment.
Once you get the message to login:
"That email address is associated with an existing WordPress.com (or
Gravatar.com) account. Please click the back button in your browser
and then log in to use it."
If you push the "back" button, as instructed, your post is gone! Very annoying.
At least once, this happened even when I was logged in to WP.
Please eliminate, or at least fix, this annoying new "feature"