This question already has an answer here:
I answered three question a while back, and today when I logged-in I see they were all voted down in chronological order. In fact one of my answers was even accepted by OP.
Refer to these links:
Were my answers deficient? As far as I know, they are all rigorous. Are there criteria for downvoting answers, like there are for questions? Were my answers not on par with the criteria?