Interesting to see that the comments section was left intact there, and Trainer had the last word: “For the record, I want readers to know that my article does NOT have any material errors. Someone from IDTI complained to the Seeking Alpha editors about the article; so they removed it. All the proof you need in our report on IDTI on my blog - and we have made the report free so anyone who wants to check my numbers is welcome to check them.”
I'd say that Chimin Sang's two articles thus far appear to have something different than "material errors," more like "fabricated or falsified documents." JMO, i'm not a lawyer.