Following his imprisonment, Niu Gur left the JCRR, and his works were for a time blacklisted by newspapers, mainly as a result of a letter from the Taipei City branch of the Kuomintang advising papers not to carry any of his comic strips or serialized novels.
牛哥在離開農復會後，作品一度遭媒體報業的封殺，主要是國民黨台北市黨部去函各報，要求不要刊登牛哥的漫畫及小說。