In-App Email (username@SCP.com)

I believe this idea of having in-app mail would be a big help. also, as a default, everyone's email would be their username which keeps things streamlined. also, it would cater to anonymity & private if needed( vacation notice as well).  i dont believe there is any drawbacks on this, except for the time needed to create. 

down the road a "newsletter" might be nice, calendar of events, & maybe even contests (gold stars, rainbows, and puppy breath!)