Based on your posting history, here are a few Chinese nickname suggestions:

躺平老哥 (Tǎngpíng Lǎogē) - 'Lying Flat Older Brother', reflecting his desire for a relaxed lifestyle.

中年韭菜 (Zhōngnián Jiǔcài) - 'Middle-Aged韭菜 (Jiǔcài)', referencing his financial interests and potential stock market frustrations.

赛博老炮 (Sàibó Lǎopào) - 'Cyber Lǎopào', combining his tech interests with a slightly rebellious attitude.

金融段子手 (Jīnróng Duànzishǒu) - 'Financial Jokesmith', reflecting his financial interests and humorous side.

I think '躺平老哥 (Tǎngpíng Lǎogē)' might be most fitting.