I definitely understand that, but I think that's only one use case. The case I am most familiar with is mine. I moved to Canada 4 years ago, right at the beginn

I definitely understand that, but I think that's only one use case. The case I am most familiar with is mine. I moved to Canada 4 years ago, right at the beginning of high school, and right at the beginning of FB going big mainstream. This meant that I met a lot of people since then, and since it was the period when FB was getting big, I would just friend people on Facebook. Before FB chat came out, if I needed to chat with them afterwards, I would get their email from their profile, or if it wasn't listed I'd ask around. When Chat came out, I stopped doing that and I would just chat with the people I didn't have on MSN/Gtalk on FB. I'm sure there's tons of people in the same/similar situation that I had.