>I often set aside some posts in a new Tab in the browser to read through the new posts.
>Sometimes I answer late, as in case of Message ID: 1567223.
>That one is now shown in UT as a message to myself, although it was actually a response to Tom W.
>Seems there was some error opportunity in such a scenario - using FF 19 on W7.

Message #1567221 is the reply you did. Message #1567223 seems to be reply to yourself.