Should Nonprofit Organization's Be on Hi5?

I've been on Hi5, yet another social networking site, that is popular outside the US, particularly in Central America (and Asia).   I've been a member for over a year only because my Cambodian colleagues and blogger friends introduced me to it.     I have not been active, but to tell you the truth other new social networking places are catching my attention right now (more about that later) (I didn't get the NTEN Member Award for person who has joined the most social networking sites for nothing ..ha)

A new profile called "Nonprofit Organizations" friend me to day.  With this question.

My answer: Different social networks are popular in different parts of the world.  So the yes or no or it depends on your audience, who you want to reach.

Rather than a yes or no question, I'd be curious to know ...

Is anyone exploring or using Hi5 yet?  What are your experiences thus far?
If you have heard about it and are thinking of exploring it, why?