IIRC &quot;disparagement&quot; has a legal definition that&#x27;s roughly &quot;injurious or misleading falsehood&quot;. An opinion cannot be false. The legal definition of disparagement is different than general usage.<p>For example, PA law:<p>* The statement is false;<p>* The publisher either intends the publication to cause financial loss or reasonably should recognize the publication would result in financial loss;<p>* Financial loss does in fact result; and<p>* The publisher either knows that the statement is false or acts in reckless disregard of its truth or falsity.<p>There is debate regarding the efficacy of non-disparagement clauses for a variety of reasons, but it&#x27;s often tough to make them stick.