Some people do, but I think it's a factoid that's easily forgotten. Like most people have said, it just really doesn't come up in conversation.
But then again, I'm not so prideful that I'd go and hide the fact that I'm here- if someone asks what I'm doing online, I'll tell them. If they ask further questions, then I'll delve a little deeper into it. More often than not, they just say "ah cool" and go about their business |D