Fun fact: Windows XP had cool day 0 loophole that saved my my ass. Once I decided to explore new options and I stumbled upon new and cool feature: setting a password. The only issue with it was that I’ve forgotten it half an hour later. I already knew ‘admin’ word so I used it in hackerman style and I logged in and I was able to reverse old password. This loophole was patched with first service pack but I still giggle when I remind myself of that.

Those overly negative comments often come from USA. I’ve never had any major problems with self checkout in Europe and I generally go there as it’s faster and you don’t have to race against the cashier. Of course some chains have worse self checkouts, some have better but overall many people like it a lot. Even some older people who are not tech savvy use them.