Should it be possible to make user votes anonymous?

I'm by no means a Python expert but I've had a go at implementing this myself. My implementation that contributes an option in the settings for anonymous votes. If unchecked (the default) user votes continue to be public. However if checked the following anonymity rules are applied:

• Upvotes no longer show the upvoting user except to administrators and the voter.
• Downvote details are hidden except to administrators and the voter. Other users simply see "voted down".

To implement the settings entry, I added an entry to /forum/settings/voting.py

ANONYMOUS_VOTES = Setting('ANONYMOUS_VOTES', False, VOTE_RULES_SET, dict(
label = _("Are user votes anonymous"), required=False,
help_text = _("If set to True user's votes are only visible to themselves and administrators.")))

and modified /forum/actions/meta.py, changing VoteAction.describe_vote to:

def describe_vote(self, vote_desc, viewer=None):
    if not settings.ANONYMOUS_VOTES or (viewer and viewer.is_authenticated() and viewer.is_superuser):
        return _("%(user)s %(vote_desc)s %(post_desc)s") % {
            'user': self.hyperlink(self.user.get_profile_url(), self.friendly_username(viewer, self.user)),
            'vote_desc': vote_desc, 'post_desc': self.describe_node(viewer, self.node)
        }
    else:
        return _("%(post_desc)s") % {
            'post_desc': self.describe_node(viewer, self.node)
        }

and VoteDownAction.describe to:

def describe(self, viewer=None):
    if not settings.ANONYMOUS_VOTES or \\\\
        (viewer and viewer.is_authenticated() and viewer.is_superuser) or \\\\
        viewer == self.by or viewer == self.node.author:
        return self.describe_vote(_("voted down"), viewer)
    else:
        return _("voted down")