Thanks Cathal. I believe the are two very important points.

The ability to restrict messaging capibilities I believe is a fundamental requirement for DNN to compete in the social space. Across many different industries and departments this type of policy is enforced widely. Also for general social sites i.e. facebook style where you have the general public registering, you will want them only communicating with their friends and more importantly just their groups. The openess to message everyone is a real dealbreaker in these scenarios and immediately enforces restrictions us as developers.

Don't get me wrong DNN6.2 is amazing and the work done in my opinion you (DNN Team) do not get half as much credit as you should. I know this is the first release of social components - but I do think this is a very important point and should be flagged as a must rather than to-do

Thanks again.

I'll be demonstrating how it's possible to extend the messaging subsystem to support these kinds of scenarios at my DNNWorld session; while the new service location mechanism was (unfortunately) not really designed for this sort of extensibility in mind, it is nonetheless possible.  In particular, I'll be showing how one can disable messaging between unauthorized principal pairs.

So, if you happen to be attending make sure to drop in!

Brandon