Chat window in the bottom right side

Just to let every one know that you can do live chat on here.

you click on the lower right side and a chat window will pop up.

Hey Daniel,
I had no idea that we could do this. I think its a great thing. I just don’t understand exactly how it works. I tried to chat, and it said that other people were online, but I didn’t get any response. I also tried to send a private message, but got no reply. I was wondering if anyone knew more about this