Some know, most don't. It came up a few times in school, and quickly faded from interest. People know who I am, and my interests don't change that image.
Considering that one of my best friends in actually in a Skype group with a several members of the forums, I think it would be pretty safe to say that he knows. Not a furry, but a nice person, and that is all that matters to me.
Those who matter don't mind, and those who mind don't matter.