What is cultural relativism, and what are its advantages and disadvantages?

You should get different responses to this question.  In
the nature of relativism, perhaps this makes sense.  Cultural relativism is the
philosophical approach which suggests that it is difficult to make assessments and
judgments against other cultures.  This is made out of the premise that we, as
individuals, are products of our cultures.  Therefore, what we might find distasteful or
inappropriate is a judgment made out of our own culture.  In contrast, what we do and
take for granted might be seen by other cultures as bizarre and in bad taste.  There is
an article on the "Nacirema" tribe that proves this point beautifully.  In examining
cultural relativism, I would examine this.  Relativism argues that not passing judgments
against cultures allows for a greater sense of cultural appreciation.  We don't lock
other cultures in judgments, but rather are tolerant and accepting of
them.

The arguments against relativism abound.  This is not
necessarily something that means it is bad, as much as it is more logically infeasible.
 For example, if judgments cannot be made about cultures and that "all cultures are
accepted," then this, by its very nature, is a judgment.  One has made a judgment by not
making a judgment.  Another challenge in the relativist logic is that it prevents anyone
from criticizing practices that might actually be in violation of basic premises of
human rights.  For instance, are we not to criticize Hitler and the practices of the
Nazis because "that's their culture?"  This might be one major challenge intrinsic to
cultural relativism