That's not the point. Yes, there might be people who will ignore the UI feedback and cast the wrong vote. The point is that, if you're going to tamper it, you'd

That's not the point. Yes, there might be people who will ignore the UI feedback and cast the wrong vote. The point is that, if you're going to tamper it, you'd rather tamper the back end. As it is, if this is happening to a lot of people, many of them are bound to report it and that risk completely outweighs any gain from the "grandmother" group. In any case, I'm skeptical of the tampering hypothesis because only one person reported and filmed it.