I withdrew my vote after jsalvatier made his comment. It made me think more about it, and the fact that I have a general problem with voting too often for things that are funny instead of things that genuinely help the signal to noise ratio. I also saw the extremely high total vote as worrisome. If the vote had at the time been +10 or +15 or so I might not have felt as much of a need to withdraw my vote.
I suspect that similar thought processes occurred with other people.
Yes, this is what I assumed had happened and was commenting on. Maybe I just pay too much attention to karma because I'm green as grass, but I don't think I've ever cast a vote without thinking through what I find valuable about the post and how that compares to its current total. The fact that apparently a lot of people cast what I would call impulse votes is making me reevaluate exactly what it is that 'karma' is measuring.
Edit: Oh, I just realized - the anti-kibitzer hides karma scores as well as usernames. Probably there's a large subset of voters who ...
From this 2001 article:
I, at least, found this amusing.