Someone else will have to add the curly-W. I don't know how.
what you do is select "modify" in the first post (it's next to the quote button on top of the post). Under the subject line, the second line is "message icon." there is a drop down list of icons, and, at the bottom, is the Curly W selection. Select the Curly W, then save. That should show the

in the subject line and on the topic list. I can do it if you don't want to try.