History always repeats itself for those who have not yet learned the great lesson of Zhou Tong.
I've no idea who Zhou Tong is, but I do know the danger of using too much leverage when investing. I've referenced
Long Term Capital Management in a number of posts over the years when this subject comes up, so it's not just crypto traders and idiots who get themselves into trouble by over-leveraging their investments. Professionals can and do make that same mistake.
I don't know about margin calls, but some bitcoin buyers had much the same trouble in 2017 when they were maxing out their credit cards to buy it, and I'm sure if there were exchanges offering margin trading back then that people were doing stupid things that caused them to lose money when December of that year rolled around.
Dont use margin, most of us arent Gordon Gecko and we have to go sleep and leaving any trade open with borrowed money is super risky.
Going to sleep with a short position is probably more of an insomnia-inducer than using margin, but either way I get your point.