I just saw this private message, and I really feel physically nauseous, with waves of wanting to vomit.

He initially called me "teacher" repeatedly. I patiently took the time to reply to him. Recently, Bitcoin has fallen, and he responded with: "Hey, I've repeatedly reminded you, and the logic has been explained. It seems I am really quite strong."

I spent time sharing my understanding and answering his questions. What did I get in the end???

This is human nature. People's hearts are not ancient.
To this fan, thank you for teaching me a lesson.
It’s a repeated disappointment in human nature, as my warm heart gradually cools down, slowly turning me into a cold, sharp ice blade.