i think it would be a ideal situation if the top 3 of a crew had a channel in game they could use without the rest of the crew seeing and potentially invite a regular member that they needed to speak with or what have you, i know we have access to IRC however it is not always a viable option for those who play on their phones and what not

I think this would be a nice addition as well.

This would make some sense. although if i recall, there is a setup already in place to mobmail just your hands. and if there isn't, that would be another way to go

there is that option however a more real time option i feel would be used more so as most often than not hands communicate via txt or IM outside of the game