Meeting people you know or know of irl randomly on the internet is always interesting. It happened to me once, I grew up in a town of about 10,000, went to school with this one girl for six years without ever talking to her, and then one day I was talking to someone online and it turned out to be her. Crazy stuff. It's quite a coincidence even finding someone in the same part of the state as me, meeting and talking with someone and then finding out they were someone I graduated with is just messed up.