Is ok to judge, it helps you to analyze if some person matchs with you and your values so you can choose if you want that person in your life. For example, if you don't judge you can't know if somebody could be a good friend, boyfriend or girlfriend.
What is wrong is using the results of the judging against somebody.
I hope you can understand my point of view, I'm not trying to be mean. :-)
Anahí y Dulce María...yo era fan hace años :) A veces la gente olvida que son personas y piensan que sólo son una "cosa" a la que criticar para vender más o para defender a tu propio ídolo comparándolos.