In [this question][1], an edit to the code <s>(by other than the asker)</s> added this block of comments to the code:

        // duplication
        //     ||
        //    \||/
        //     \/
        try {
            listener = (SomeListener) activity;
        } catch (ClassCastException e) {
            throw new ClassCastException(activity.toString()
                    + " must implement SomeListener");
        }

This appears to be an answer or comment, of sorts.

Is this good practice?  Should I flag it for moderator attention?

[1]: http://codereview.stackexchange.com/questions/39091/help-me-pick-a-good-name-for-a-class
[2]: http://meta.codereview.stackexchange.com/questions/762/should-you-edit-the-code-in-a-question