This can be reduced down to:

```jinja
<li id="nav-about"><a href="{{ url('flicks.base.home') }}#about">{{ _('About') }}</a></li>
{% if not waffle.flag('r3') %}
  <li id="nav-flicks"><a href="{{ url('flicks.base.home') }}#flicks2013">{{ _('2013 Flicks') }}</a></li>
{% endif %}
<li id="nav-judges"><a href="{{ url('flicks.base.home') }}#judges">{{ _('Judges') }}</a></li>
<li id="nav-prizes"><a href="{{ url('flicks.base.home') }}#prizes">{{ _('Prizes') }}</a></li>
<li id="nav-rules"><a href="{{ url('flicks.base.home') }}#rules">{{ _('Rules') }}</a></li>
{% if waffle.flag('r3') %}
  <li id="nav-vote"><a href="{{ url('flicks.videos.list') }}" class="go">{{ _('Vote Now!') }}</a></li>
{% endif %}
<li id="nav-blog"><a href="http://firefoxflicks.tumblr.com" class="go" rel="external">{{ _('Blog') }}</a></li>
```