Okay, so I'm filing this under a bug report because I don't see how this person should have been able to comment. The user Claudio (who is unregistered, and currently has 1 reputation) left a comment on my answer to a question he did not ask. I was under the impression that users under 50 rep could only comment on either their own answers or the question/answers to a question they asked. So how was this person able to leave a comment?

Okay, so I'm filing this under a bug report because I don't see how this person should have been able to comment. The user Claudio (who is unregistered, and currently has 1 reputation) left a comment on my answer to a question he did not ask. I was under the impression that users under 50 rep could only comment on either their own answers or the question/answers to a question they asked. So how was this person able to leave a comment?