someone who uses the Friendster service to add as many possible friends, aquaintances, strangers and random people to their network. Persistently asking for testimonial from others is common too.
Purpose of it all? To make oneself appear as if they know a lot of friends and attract attention (refer to attention whore).
Bill is such a Friendster Whore. He doesn't even know 80% of the people on there. Like he could even have 10 friends, let alone 189, he also have over 1000 of testimonials, mainly spam.