they're most likely allowing stolen computers to be used
Also those which have been recycled, or which someone has locked out accidentally, or deliberately to scam someone ( https://news.ycombinator.com/item?id=7993435 ), etc. Used computers from companies often have BIOS passwords that no one bothered to clear before sending them off. Not every computer with a password its current owner doesn't know is a stolen one. That's why I think this is a good thing --- I believe in the fact that if you physically own something, regardless of how you came to own it, you should truly "own" it.
Also those which have been recycled, or which someone has locked out accidentally, or deliberately to scam someone ( https://news.ycombinator.com/item?id=7993435 ), etc. Used computers from companies often have BIOS passwords that no one bothered to clear before sending them off. Not every computer with a password its current owner doesn't know is a stolen one. That's why I think this is a good thing --- I believe in the fact that if you physically own something, regardless of how you came to own it, you should truly "own" it.