social

all I wanted to do was pitch a film story to a new US company with studio links but I kind of ended up joining their social networking site to do it but it seems like they just want you to post pitches up on their site and who seriously is going to be up for that? and anyway I think I sort of pitched because the company is one of my new 'friends' so I sent a private comment (or two) so now new 'friends' arrive everyday and it's kind of rude to not accept isn't it? and the whole thing kind of pulls you in after a while - even though no one else seems to be too worried about trying to pitch direct but how do people keep up social networks on this scale and why ? and what do you do if you decide you just want to bail out..
or maybe you can't?