Seriously - can anyone answer this question about human nature?

Because it is a human courtesy. Even though MJ was accused of being a child molester, after he has ped, it is better to remember him for his great talent and music he made. It was kind of shocking to me that after he died a lot of people were celebrating him, but for the past 10 years or more before his death he was constantly being joked on and called weird. Hitler was a great leader and public speaker but that is never mentioned because his evil acts overshadowed any recognition of greatness in his ability.