Nole didn't start calling his fans that-they did.
I remember seeing a Ustream he did a little while back ,and the fans sent in a question,to ask him if he was ok with them calling themselves "Nolefam",that if he didn't like it they'd change it (or something along those lines).He was hardly about to say no!
I really think when he writes messages like that it's just him trying to be nice to his fans.He always comes across to me as that kind of guy anyway-friendly,enthusiastic,wanting people to know he's interested-I think it just maybe comes across slightly stronger (ok,very strongly
) when written down!
And I don't think we're in any danger of Andy posting messages like that-but it doesn't mean Andy doesn't care about his fans just as much as Novak,it's just,as Aileen said,got to do with the two being very different personalities!