Reactions to the discovery of Yu's talent varied: on the one hand, world famous artists would go to his humble home for visits, teaching, or buying. At the same time, many refused to consider doing large-scale exhibitions of his work.
有許多國際知名拜訪、求教、買畫；另一方面，也有人一再拒絕在美術館、博物館為老先生舉辦大型繪畫書法展覽的建議。對於這些不同的反應，老先生一點也不以為意。