Standard practice on mailing lists is that the list name, or a short version, is added in square brackets as the start of the subject. For example, "[hiking club] new trail opens today". If you are in message list view in Aqua Mail, this entire subject is shown. However, if you are viewing a particular message, this prefix is trimmed off and you only see "new trail opens today". This means, if I want to refile a message according to which mailing list it came from, I have to close the message and return to list view. I would like the ability to see the full subject line while reading a message.