There's some variation depending on hair colour but for an average adult the strand count is 100,000, so losing 100 a day is not too bad.

So it would be fair to count a bad vote less if it comes after another bad vote by that user.

I probably have quite a bad diet and I probably drink too much, but you can be reasonably unhealthy for the first 35 years of life and still count yourself unlucky if you die.