I use html code bellow to show Rating Star in google search.
<span itemscope="itemscope" itemtype="http://data-vocabulary.org/Review-aggregate" style="display: none;"><span class="item"><span class="fn">keyword1</span>
<span class="fn">keyword2</span>
<span class="fn">keyword3</span>
<span class="fn">keyword4</span> </span>Rated
<span itemprop="rating" itemscope itemtype="http://data-vocabulary.org/Rating">Rating:<span itemprop="value">4.3</span>/<span itemprop="best">5</span></span>Votes<span itemprop="votes">1234</span>votes</span> |
Do you think with above code google will flag spam keyword ?