Interacting with fans is one of SA's favorite things to do. He loves the attention whether it be at cons, on his FB, or walking in an airport. It is probably what drives him to be a better actor and take more diverse roles moving forward. And this isn't a bad thing either - that is one of the joys of being a successful actor, the fruits of their labor so to speak.
He put his name and reputation behind HVFF, and although he went out of his way to make sure fans had a good time, I think he truly wanted to make sure they knew how much he appreciates their support and their commitment to what he is doing.