I love Facebook.
It seems to have different purposes for different people.
I certainly don't have 470 'friends' on Facebook, as the people I connect with there are people who actually are my friends and family. I have had friends of friends ask to be my 'friend' but I don't accept them.
I find Facebook useful for things like - sharing photos of my children, catching up socially without having to send out a pile of individual emails, etc, and there is a limited amount of people who I feel comfortable sharing this sort of thing with.
Some people seem to attach importance to collecting 100s of Facebook friends, really want to seem popular or something -I find that whole concept a bit pathetic and sad.
Then there are others (and I suspect Xenia is one of these) who collect 100s of 'friends' as a networking expercise. If you have a product or business to promote - it is probably a great idea, and good business practise.
I like Facebook for allowing me a convenient way to connect with people I actually like to see in real life, but there are other uses for it, which I respect.
Caroline