He was talking about living on Bitcoin and he said that he HODLs his BTC and basically spends only USD. He gets paid in all different fiat, and he spends this fiat for his daily life. When he can, he buys more BTC and HODL.
I don't see anything wrong with it, what is he supposed to do since he is paid in fiat? Take that fiat and buy BTC, and then do KYC on some of 3rd party service to be able to use their card and pay for groceries, utility bills and all other everyday expenses? He wouldn't accomplish anything beside loosing percentage of that money through various fees.
Second, if everyone HODL and nobody spends BTC, isn't this becoming just a pyramid scheme?
Using that logic, anything you buy as an investment is pyramid scheme, which is not true of course.