[regular_trash]

If the problem is pervasive as made out to be, it stands to reason that a person would have at least one anecdotal experience in favor of the claim.

[handoflixue]

Given the massive variation in self checkouts, it's also possible you just live in a region which is on the High Quality end of the bell curve.

[compiler-guy]

Which is more likely?

1. The people who say they have had a problem actually have had a problem, and some other people have gotten lucky.

2. The people who say they have had a problem are lying, or deceived.

[theamk]

3. The people who say they have a problem actually had a problem, but they a minority and got unlucky, and then extrapolated their experience to everyone else

The article actually ends with "shoppers are likely to find themselves disappointed and frustrated most of the time." - and that is clearly false for me and everyone I know. "rarely" or "occassionaly"? maybe. But not "most of the time".