Yep. That's clearly what's happening, and given that there's instant feedback, the user would know there's a problem, and either ask for a different machine or adjust until the system represents their actual intent.
I'm not claiming it is malicious, but would they? If they can swing even 1% of the votes of people who just don't care enough, or would feel embarrassed at failing to use a machine, they can have a significant impact while having an obvious scapegoat.
Assuming it's miscalibration, how many people used this machine before the video? how many afterward?
>I then called over a volunteer to have a look at it. She him hawed for a bit then calmly said βItβs nothing to worry about, everything will be OK.β and went back to what she was doing. I then recorded this video.
That sounds like they were very likely the first person to complain. What did the rest do?
