I got you, fam.
So, the reason why "Choi Kang-Gongu" is an embarrassing writer name from pro writer Choi Eun-suk is because of what it means. Basically, it's a very chuuni author name.
Let's break down the name "Choi Kang-Gongju" and provide a more detailed translation:
Choi (최): This is...