An anonymous blog post, which was widely shared, claimed that Sexy Cyborg "is an online persona created by Wu's boyfriend, who is a seasoned electrical engineer who has used Wu as the face of his operation."

It cites "red flags" about her such as "just how good her written English skills are" for someone from China, and her familiarity with social media networks such as YouTube, Twitter and Instagram, which are blocked — but still accessible via VPN — in China.

The blog post has since been deleted.