At this time, there is no easy way to find or to group the SCP community. In the future, I am hoping to do so and, depending on the wants of those within the community, make this type of communication possible. As I think about it, probably a group for SCP holders to opt into.
As you may know, we are looking to revamp the platform on which thwack sits to gain more flexibility around numerous community features.
Great idea and I will definitely keep it in mind.