Article continues below advertisementGlen Powell has ignited a storm of speculation after refusing to identify the "toxic" star he avoided being photographed with at a Hollywood party - a silence insiders say has triggered an online witch-hunt now engulfing divisive figures from Mel Gibson to Kevin Spacey.Powell's comments, made on the "Therapuss" podcast, were intended as a cautionary tale about navigating public life.Article continues below advertisementSource: MEGAGlen Powell refused to name the 'toxic' actor he had a bad experience with.