Same thing happened to my friend...
He had a proper theme, not MFA theme
He had a privacy policy
Each one of his sites he made money from (2) were thin content though, he had about 10-15 pages indexed. About 10 articles, privacy policy, disclosure, contact etc.
I know there is at least one WF member who banks on "thin" sites, and has been doing it for a while. So, I'm wondering if there were other TOS violations here that are not apparent or being discussed.