I've changed the settings on my blog so that email addresses are not required for comments. This means that a person who tries to leave a comment using an address that's associated with a WordPress / Gravatar account has three options:
1. They can log in to the WordPress / Gravatar account
2. They can leave their comment with a different email address not associated with a WordPress / Gravatar account
3. They can leave their comment without any email address
However, the message that they get when they try to post a comment only lists the first option, leading at least one person to believe that they would not be able to comment on my blog without logging in.
Also, not everyone who has a WordPress or Gravatar account actually uses it. Sometimes people create Gravatar accounts and forget the passwords, or even forget that the account exists (as was the case with my user this morning). The message that tells people they have to log in to comment should at least include instructions for recovering forgotten passwords.
Finally, since some people now find that having a WordPress / Gravatar account makes life less convenient for them, there should be an option for deleting those accounts.
The blog I need help with is unlikelyexplanations.com.