Could it be a early draft title or a fan discussion? “Bad con top” might refer to a “bad convention topic” or “bad conspiracy top(ic).”
Thus: A person known as “Mary Rock” is actually the thriller writer Sam Bourne, writing under a female pseudonym for unknown reasons. “New freeze” refers to a publishing or media freeze on this revelation. “Bad con top” – it’s a bad conspiracy topic. new freeze 24 11 15 mary rock es sam bourne bad con top
The phrase appears to be a cryptic "nonsense" string or a specific keyword sequence often found in SEO-spam web pages or automated bot-generated content . Could it be a early draft title or a fan discussion