I don't know any other furs irl, and haven't made any friends through FA or anything yet either, so in-a-sense nobody I personally know, knows.
If that changes in any way, new friends, etc, so be it.
Personally, I never really found a reason to hide it. My mom knew I had fursuits, and usually always begged me to wear it during halloween to give candy out.
As long as people aren't seedy or overly pervy with it, I think people would accept it a bit easier.